1,720,984 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
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
Identifying & Analyzing Security Vulnerabilities While Integration of Data from Cloud to SQL DBMS An Industrial Case Study
Get PDFData integration defines propulsion of data from numerous sources into a database system in a way that yields the information representing powerful analytics. Various industries are always working towards keeping their data confidential and in a manner that will let them mine it later & retrieve strong statistics out of it for procuring future profits. This research will discuss about using SaaS (Software as a service) and SQL (Structured Query Language) as a combined model for storing inspections data to achieve the above-mentioned goals that the companies are on the road to. Since SaaS and SQL comes into play, a major part of the research automatically pops up, i.e. security vulnerabilities. Hence, this study details about various security threats while using Cloud storage, SQL database and during the ETL (Extraction, Transformation & Loading) from former to latter, in addition to connecting these database systems to produce an overall secure system.
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
The investigation of the antiparkinsonian effects of glutamate receptor antagonists
Get PDF1. This study investigated the locomotor effects of glutamate antagonists in drug-naive and reserpine-treated mice. The NMDA channel blockers, dextromethorphan, memantine, amantadine and phencyclidine (PCP), enhanced the locomotor activity of drug-naive mice. Two clear populations could be differentiated after the administration of 40 mg/kg dextromethorphan, i.e non-responders and responders. We postulated that the responders were able to metabolise dextromethorphan to the more potent dextrorphan. Only high doses of memantine, PCP and ketamine reversed the akinesia induced by reserpine. Due to the induction of motor deficits, these drugs are not a viable option, at present, for use as monotherapy in PD. These drugs may be more beneficial as adjuncts to the dopamine- based therapy of PD. When interactions with the dopamine D1 agonist, SKF 38393, the D2 agonist, RU 24213, and the dopamine precursor, L-Dopa, were investigated in reserpine-treated mice, only dextromethorphan interacted positively with SKF 38393, while MK 801, the glutamate release blockers, lamotrigine and clonidine, the glycine site antagonist, (±) HA-966 and the competitive NMDA antagonist, CPP, interacted synergistically with L-Dopa. It is conceivable that subthreshold doses of the NMDA channel blockers are needed to potentiate the response to L-Dopa, as very low doses of MK 801 synergised with L-Dopa while higher doses induced motor deficits, which impeded locomotion. This curvilinear response is a hallmark of the glutamate antagonists, as low doses increase locomotion by possibly acting at the level of the striatum and/or the nucleus accumbens (NAc) and facilitating dopaminergic transmission by enhancing synthesis and/or release of dopamine, while high doses decrease locomotion by inducing motor deficits, which may result from the action of these drugs at sites outside the basal ganglia, such as the motor cortex.
2. Stereotaxic injections of the glutamate antagonists were then administered into the corpus striatum (CS) or the substantia nigra pars reticulata (SNr) of reserpine-treated rats to determine the site of action of these compounds. Only a subgroup of competitive NMDA receptor antagonists, CPP and CGP 40116, induced behavioural arousal from the CS whereas MK 801, PCP, the competitive NMDA receptor antagonist, AP-5, which was ineffective in the CS, and the AMPA receptor antagonist, NBQX in addition to CPP and CGP 40116 produced activity from the SNr. As there is a narrow window between doses which are beneficial and doses which induce motor deficits, careful titration of doses is necessary to separate out the beneficial effects from the detrimental effects. Our results indicate that both the CS and the SN are involved in the locomotor-stimulant as well as side-effect inducing properties of these drugs.
3. The effects of MK 801 were then determined in the cataleptic rat model of PD. Systemic MK 801 alleviated the catalepsy induced by systemic haloperidol and by intrastriatal or intraaccumbens haloperidol. MK 801 administered into the CS, NAc, SNr, subthalamic nucleus (STN) or the entopeduncular nucleus (EPN), attenuated the catalepsy induced by systemic haloperidol. However, systemic MK 801 was ineffective against the catalepsy induced by intrapallidal or intrathalamic muscimol. These results indicate that catalepsy induced by neuroleptics and the anticataleptic ability of MK 801 can arise from regions apart from the CS. The finding that MK 801 was ineffective against intracerebral muscimol-induced catalepsy supplements evidence for theories advanced by Chesselet and Delfs (1996) and Levy et al. (1997), stating that the hyperactivity of the STN may not depend directly on the hyperactivity of the GP, but instead the cortico-subthalamic glutamatergic pathway may be responsible
Læring i et nytt perspektiv En kvalitativ studie om voksne deltakere sin erfaring og opplevelser av MFY i Agder.
Get PDFDenne kvalitative studien undersøker grunnprinsippene for voksenopplæring og hvordan de
ivaretas i MFY-programmet i Agder, basert på teorier om andragogikk og voksenopplæring.
Forskningsspørsmålet er: "Hvilke prinsipper er grunnleggende for opplæring av voksne, og
hvordan ivaretas disse i MFY i Agder?" Studien identifiserer fire grunnleggende prinsipper:
selvstyrt læring, identifisering av individuelle behov,erfaringsbasert læring og bruk av
praktisk arbeid og teoretisk kunnskap. Gjennom semistrukturerte intervjuer med seks
deltakere, viser det seg at prinsippene er godt ivaretatt. Prinsippene ivaretas på tvers av MFY
programmet og viser til at deltakere får relevant kompetanse i tråd med arbeidslivet.
Resultatene fremhever også viktigheten av fleksibilitet, kombinasjonen av teori og praksis,
samt behovet for bedre veiledning og implementering av profesjonelle yrkesutøvere. Studien
gir verdifull innsikt i hvordan voksenopplæring kan gjøres meningsfull og relevant, selv om
funnene kanskje ikke kan generaliseres utover Agder.
Nøkkelord: andragogikk, aktivitetspedagogikk, voksenopplæring, didaktikk, selvregulert
læring, modulbasert fag- og yrkesopplæring
- …
