1,720,983 research outputs found
The impact of real-time carbon dioxide awareness on occupant behavior and ventilation rates in student dwellings
Full text linkAlthough existing standards typically prescribe fixed ventilation rates, a large portion of the building stock lacks mechanical ventilation systems. Such buildings obtain outdoor air through unintentional infiltration, open windows, and the operation of exhaust fans, which are mainly dependent on user awareness and behavior. This study investigates whether the presence of a simple CO2 meter display can alter user behavior and improve indoor air quality (IAQ) in dwellings. We conducted a two-week monitoring of CO2 concentration, air temperature, and relative humidity in 60 student dwellings (bedrooms and living rooms) in Denmark and Switzerland. During the first week, the CO2 display was concealed, and occupants adhered to their usual routines. In the second week, occupants used the display's visual feedback to enhance IAQ when necessary. Results revealed that over 95% of dwellings witnessed a reduction in median CO2 levels during the second week, both overall and in individual rooms. Furthermore, a descriptive analysis of CO2 concentration step changes exceeding the thresholds of "normal variation" showed an increase in the number of negative step changes, indicating a shift in user behavior. These findings underscore the efficacy ofa display interface providing information on the indoor environment in triggering behavior changes and improving IAQ in dwellings.HOBE
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
A thermal comfort model for high-altitude regions in the Ecuadorian Andes
Full text linkOf Ecuador's 3.75 million households, 33% live in poor-quality and substandard dwellings. Construction standards provide metrics and criteria for energy and comfort performance evaluation; that plays a significant role in designing adequate and affordable dwellings. Due to a lack of supporting evidence, the thermal comfort criteria have been adopted from international standards, such as ASHRAE 90.2:2018. In the absence of accurate contextualised comfort models, building standards can trigger a combination of wasting energy and exacerbating discomfort. Furthermore, householders' environmental perception may be affected by particular weather and geographical conditions. Therefore, this research aims to define thermal comfort criteria, aligned with residents' perception in subtropical highlands, to be used for the thermal performance assessment in dwellings in the Ecuadorian Andes. The research combined cross-sectional thermal comfort surveys and thermal performance simulation. Data was collected in three locations between 2400 and 3000 meters above sea level. This thesis's main outcomes add knowledge on why and how people adapt to high-altitude locations. Thermal comfort temperatures are significantly different across the study locations due to altitude. Moreover, the comfort temperature differences also rely upon the broader limits of comfort acceptability for lower altitudes and acclimatised subjects. On the contrary, the range is narrower at higher altitudes and non-acclimatised residents. The derived high-altitude thermal comfort algorithm for the Ecuadorian Highlands resulted from the regression of the comfort temperature and the 24-hour mean outdoor air temperature. Over 80% of comfort hours were estimated for the study archetypes based on the high-altitude comfort model. International comfort models consistently overestimate the percentage of hours of discomfort for all the study archetypes. Moreover, the discomfort could increase up to 30% for dwellings in compliance with the thermal insulation requirement of the Ecuadorian construction standard (NEC11). The research outcomes are expected to contribute with grounded evidence to the development of local construction policy
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
- …
