1,720,954 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Life Cycle Assessment of Building Digitalization : Evaluating the Environmental Impact of IoT-Based HVAC System in Residential Complex
No full textSmart technologies and buildings’ digitalization are receiving recognition as a critical strategy that enhances the energy efficiency and indoor climate control. However, the environmental impacts of such transformations are not fully explored. The number of IoT edge devices which will be deployed globally is difficult to estimate and is expected to increase from 5 billion in 2020 to over 200 billion by 2030. This figure includes a broad range of applications; however, this can logically imply a substantial rise in the use of such devices at the field of building management systems. Thus, concerns can be raised about their cumulative environmental footprint. This thesis examines through a Life Cycle Assessment (LCA) the environmental implications of Internet of Things (IoT) devices used in the Heating Ventilation and Air Conditioning (HVAC) system in buildings. The research is done based on a real-world scenario. A residential complex of two buildings located in Stockholm, Sweden, managed by Botrygg underwent an HVAC upgrade at the end of 2023, with the implementation of a comprehensive Information and Communication Technology (ICT) system. This upgrade affects the 171 apartments that exist in the complex, and it includes indoor and outdoor sensors, Programmable Logic Controllers (PLC), routers, cloud services, and user interfaces. All of these components aim on a better responsive control of heating, hot water, and ventilation. To quantify the environmental impacts, the LCA methodology used follows the ISO 14040/44 standards. The ReCiPe 2016 Midpoint (H) method is utilized, focusing in three main categories: Global Warming Potential (GWP), Resource Scarcity and Toxicity. Human noncarcinogenic toxicity impact is proven to be the most substantial in absolute terms, with a value of 1.09e+05 kg 1,4 DCB. At the same time, human carcinogenic toxicity reaches the value of 838, when it comes to normalized per capita values (838 times more emissions than the activities of an average person). For GWP, the studied system has a carbon payback time of 2.2 years over a lifespan of 10 years. This indicates that climate benefits begin to outweigh the emission of the system after this period of operation. Moreover, the largest share of the environmental burden comes from the production and raw material extraction phase, compared to the use and disposal phases. The environmental trade-offs involved in building digitalization are being highlighted through this research, offering useful insights for the sustainability of similar systems. The results emphasize that integrating LCA in early-stage design and decision-making processes is important to ensure that digital innovations in building management can contribute to longterm goals around sustainability.Smarta teknologier och digitalisering av byggnader erkänns i allt högre grad som en avgörande strategi för att förbättra energieffektivitet och inomhuskomfort. De miljömässiga konsekvenserna av sådana omvandlingar är dock inte fullt utforskade. Det globala antalet IoTenheter som kommer att implementeras är svårt att uppskatta, men förväntas öka från 5 miljarder år 2020 till över 200 miljarder år 2030. Denna siffra inkluderar ett brett spektrum av tillämpningar, men det kan logiskt sett innebära en betydande ökning av sådana enheter inom byggnadsstyrningssystem. Därmed uppstår farhågor kring deras ackumulerade miljöpåverkan. Denna avhandling undersöker, genom en livscykelanalys (LCA), de miljömässiga konsekvenserna av Internet of Things (IoT)-enheter som används i värme-, ventilations- och luftkonditioneringssystemet (HVAC) i byggnader. Studien baseras på ett verkligt scenario: Ett bostadskomplex bestående av två byggnader i Stockholm, Sverige, som förvaltas av Botrygg, genomgick en HVAC-uppgradering i slutet av 2023 genom implementeringen av ett omfattande informations- och kommunikationsteknologisystem (IKT). Uppgraderingen påverkar de 171 lägenheter som finns i komplexet, och omfattar inomhus- och utomhussensorer, programmerbara logiska styrsystem (PLC), routrar, molntjänster och användargränssnitt. Alla dessa komponenter syftar till en mer responsiv styrning av uppvärmning, varmvatten och ventilation. För att kvantifiera miljöpåverkan följer den använda LCA-metodiken ISO 14040/44- standarderna. Metoden ReCiPe 2016 Midpoint (H) används och fokuserar på tre huvudkategorier: global uppvärmningspotential (GWP), resursbrist och toxicitet. Mänsklig icke-cancerogen toxicitet visar sig vara den mest betydande i absoluta termer, med ett värde på 1,09e+05 kg 1,4 DCB. Samtidigt når mänsklig cancerogen toxicitet ett värde på 838 när det gäller normaliserade per capita-värden (838 gånger mer utsläpp än en genomsnittlig persons aktiviteter). För GWP uppnår det studerade systemet en klimatåterbetalningstid (carbon payback time) på 2,2 år. Det innebär att klimatfördelarna börjar överstiga systemets utsläpp efter denna driftsperiod. Dessutom kommer den största delen av miljöbelastningen från produktions- och råmaterialutvinningsfasen, jämfört med användnings- och avfallsfaserna. De miljömässiga kompromisserna som är förknippade med digitalisering av byggnader lyfts fram genom denna studie och erbjuder värdefulla insikter för hållbarheten i liknande system. Resultaten understryker vikten av att integrera LCA i tidiga design- och beslutsprocesser för att säkerställa att digitala innovationer inom byggnadsstyrning kan bidra till långsiktiga hållbarhetsmål
Life Cycle Assessment of Building Digitalization : Evaluating the Environmental Impact of IoT-Based HVAC System in Residential Complex
No full textSmart technologies and buildings’ digitalization are receiving recognition as a critical strategy that enhances the energy efficiency and indoor climate control. However, the environmental impacts of such transformations are not fully explored. The number of IoT edge devices which will be deployed globally is difficult to estimate and is expected to increase from 5 billion in 2020 to over 200 billion by 2030. This figure includes a broad range of applications; however, this can logically imply a substantial rise in the use of such devices at the field of building management systems. Thus, concerns can be raised about their cumulative environmental footprint. This thesis examines through a Life Cycle Assessment (LCA) the environmental implications of Internet of Things (IoT) devices used in the Heating Ventilation and Air Conditioning (HVAC) system in buildings. The research is done based on a real-world scenario. A residential complex of two buildings located in Stockholm, Sweden, managed by Botrygg underwent an HVAC upgrade at the end of 2023, with the implementation of a comprehensive Information and Communication Technology (ICT) system. This upgrade affects the 171 apartments that exist in the complex, and it includes indoor and outdoor sensors, Programmable Logic Controllers (PLC), routers, cloud services, and user interfaces. All of these components aim on a better responsive control of heating, hot water, and ventilation. To quantify the environmental impacts, the LCA methodology used follows the ISO 14040/44 standards. The ReCiPe 2016 Midpoint (H) method is utilized, focusing in three main categories: Global Warming Potential (GWP), Resource Scarcity and Toxicity. Human noncarcinogenic toxicity impact is proven to be the most substantial in absolute terms, with a value of 1.09e+05 kg 1,4 DCB. At the same time, human carcinogenic toxicity reaches the value of 838, when it comes to normalized per capita values (838 times more emissions than the activities of an average person). For GWP, the studied system has a carbon payback time of 2.2 years over a lifespan of 10 years. This indicates that climate benefits begin to outweigh the emission of the system after this period of operation. Moreover, the largest share of the environmental burden comes from the production and raw material extraction phase, compared to the use and disposal phases. The environmental trade-offs involved in building digitalization are being highlighted through this research, offering useful insights for the sustainability of similar systems. The results emphasize that integrating LCA in early-stage design and decision-making processes is important to ensure that digital innovations in building management can contribute to longterm goals around sustainability.Smarta teknologier och digitalisering av byggnader erkänns i allt högre grad som en avgörande strategi för att förbättra energieffektivitet och inomhuskomfort. De miljömässiga konsekvenserna av sådana omvandlingar är dock inte fullt utforskade. Det globala antalet IoTenheter som kommer att implementeras är svårt att uppskatta, men förväntas öka från 5 miljarder år 2020 till över 200 miljarder år 2030. Denna siffra inkluderar ett brett spektrum av tillämpningar, men det kan logiskt sett innebära en betydande ökning av sådana enheter inom byggnadsstyrningssystem. Därmed uppstår farhågor kring deras ackumulerade miljöpåverkan. Denna avhandling undersöker, genom en livscykelanalys (LCA), de miljömässiga konsekvenserna av Internet of Things (IoT)-enheter som används i värme-, ventilations- och luftkonditioneringssystemet (HVAC) i byggnader. Studien baseras på ett verkligt scenario: Ett bostadskomplex bestående av två byggnader i Stockholm, Sverige, som förvaltas av Botrygg, genomgick en HVAC-uppgradering i slutet av 2023 genom implementeringen av ett omfattande informations- och kommunikationsteknologisystem (IKT). Uppgraderingen påverkar de 171 lägenheter som finns i komplexet, och omfattar inomhus- och utomhussensorer, programmerbara logiska styrsystem (PLC), routrar, molntjänster och användargränssnitt. Alla dessa komponenter syftar till en mer responsiv styrning av uppvärmning, varmvatten och ventilation. För att kvantifiera miljöpåverkan följer den använda LCA-metodiken ISO 14040/44- standarderna. Metoden ReCiPe 2016 Midpoint (H) används och fokuserar på tre huvudkategorier: global uppvärmningspotential (GWP), resursbrist och toxicitet. Mänsklig icke-cancerogen toxicitet visar sig vara den mest betydande i absoluta termer, med ett värde på 1,09e+05 kg 1,4 DCB. Samtidigt når mänsklig cancerogen toxicitet ett värde på 838 när det gäller normaliserade per capita-värden (838 gånger mer utsläpp än en genomsnittlig persons aktiviteter). För GWP uppnår det studerade systemet en klimatåterbetalningstid (carbon payback time) på 2,2 år. Det innebär att klimatfördelarna börjar överstiga systemets utsläpp efter denna driftsperiod. Dessutom kommer den största delen av miljöbelastningen från produktions- och råmaterialutvinningsfasen, jämfört med användnings- och avfallsfaserna. De miljömässiga kompromisserna som är förknippade med digitalisering av byggnader lyfts fram genom denna studie och erbjuder värdefulla insikter för hållbarheten i liknande system. Resultaten understryker vikten av att integrera LCA i tidiga design- och beslutsprocesser för att säkerställa att digitala innovationer inom byggnadsstyrning kan bidra till långsiktiga hållbarhetsmål
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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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