1,720,963 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
Istraživanje trovalentnih titanata rijetkih zemalja lokalnim probama
No full textThis thesis contains an in-depth experimental investigation of trivalent rare-earth titanates. Titanates are a model system for exploring intricate interactions between spin, orbital, and lattice degrees of freedom. These compounds belong to a broader family of transition metal oxides. Their ground state can be easily manipulated by strain, chemical, and charge doping, offering a unique opportunity to explore the Mott insulator phase and metal-insulator transitions. One of the foremost open questions is the orbital state of titanates which we try to resolve with this thesis. We present a detailed nuclear magnetic resonance (NMR) and electron spin resonance (ESR) study of single-crystalline samples of (Y,Ca,La)TiO_3 in a wide range of isovalent substitution (La) and hole doping (Ca). 89^Y NMR demonstrates a clear discrepancy between the static and dynamic local magnetic susceptibilities, with deviations from Curie-Weiss behavior far above the Curie temperature _. ESR of the unpaired Ti electron shows broad resonance lines at all temperatures and substitution/doping levels, which we find to be caused by short electron spin-lattice relaxation times. Modeling of the relaxation as an Orbach process revealed a small gap likely produced by Jahn-Teller splitting of the two lower Ti _2 orbitals. We find that the value of the gap closely follows _ and is consistent with the temperatures at which deviations from Curie-Weiss fluctuations are observed in NMR. These results indicate that full orbital degeneracy lifting is associated with ferromagnetic order. Ferromagnetic resonance with orientational dependence on the three primary YTiO_3 axes was successfully measured and modeled. Free energy description of the data revealed values for the parameters reflecting the inherent magnetocrystalline anisotropy. Furthermore, we present measurements of uniaxial strain on a range of (Y,Ca,La)TiO_3 single crystals and its influence on the bulk ferromagnetism. The results demonstrate direct, reversible and continuous control of ferromagnetism by influencing the TiO6 octahedral tilts and rotations. Ab initio calculations, provided by our collaborators, agree well with the experimental data and offer a better understanding of the complex interactions among structural, orbital and magnetic properties that drive the physics of rare-earth titanates.Rezultati ovog rada daju jedinstven i detaljan uvid u lokalne interakcije u titanatima rijetkih zemalja. Mjerenja lokalnih statičkih i dinamičkih susceptibilnosti s pomoću reix zonantnih tehnika upotpunjavaju fazni dijagram ne samo stehiometrijskog spoja YTiO_3, već i čvrstih otopina Y(Ca,La)TiO_3 na kojima do sada nije bilo eksperimentalnih rezultata. Pokazali smo da postoje anomalna ponašanja u paramagnetskoj fazi titanata, koja se posebno očituju u relaksacijskim mjerenjima detektiranim NMR tehnikom. Snažna divergencija relaksacije 1/_2 na temperaturama ≈ 70K nije objašnjena, što upućuje na potrebu boljeg razumijevanja važnosti mehanizma relaksacije spin-spin u titanatima i srodnim oksidima prijelaznih metala. Jedinstven uvid u orbitalno stanje titanata dobili smo mjerenjem elektronske spinske rezonancije. Potvrdili smo postojanje malog procjepa između najnižih nivoa _2 orbitala te utvrdili jasnu vezu s feromagnetizmom ovih spojeva. Naši rezultati potvrđuju važnost blagih Jahn-Tellerovih deformacija oktaedara za bolje razumijevanje kompleksnih interakcija u jakokoreliranim elektronskim sustavima. Ovim radom ističemo važnost korištenja rezonantnih tehnika pri istraživanju oksida prijelaznih metala. Nadalje, originalnim eksperimentom uniaksijalnog naprezanja potvrdili smo teorijska predviđanja o utjecaju kontrolirane kompresije na magnetsko osnovno stanje. Naši rezultati, uz dobro slaganje s teorijskim modelom, dali su uvid u točne distorzije rešetke koje pospješuju FM i AFM vezanja u titanatima. Ovaj jedinstveni eksperiment daje snažan poticaj za mogućnost inženjerstva željenih svojstava u materijalima s pomoću naprezanja
New electronic orders in cuprate superconductors
Get PDFU ovom radu izneseni su rezultati mjerenja toplinskog kapaciteta jako poddopiranih uzoraka La2-xSrxCuO4 dopiranih sa x= 1.5%, 2%, 2.5%, 3% i 3.5% stroncija. U tu svrhu korištena je posebno izrađena proba bazirana na diferencijalnoj metodi mjerenja malih toplinskih kapaciteta ispod sobne temperature. Visoka osjetljivost ovakve probe potvrđena je detekcijom supravodljivog prijelaza uzorka LSCO-a dopiranja x=12.5% jako male mase. Iznesen je poseban postupak modeliranja pozadine i određivanja malih signala faznih prijelaza pri analizi dobivenih podataka. Izmjereni su vrhovi u toplinskom kapacitetu navedenih poddopiranih uzoraka za koje postoje indicije da su povezani s novim oblikom uređenja u ovim sustavima. Ako teorijski predviđena feronematska faza odgovara takvim faznim prijelazima, ona ima potencijala produbiti razumijevanje kupratnih supravodiča.In this thesis we present the measurements of specific heat on heavily underdoped La2-xSrxCuO4 samples for strontium doping of x= 1.5%, 2%, 2.5%, 3% and 3.5%. The measurements were carried out using a home-made probe which is able to differentially measure small heat capacity at low temperatures. We have confirmed the high sensitivity of our probe by measuring the superconducting transition of a small LSCO sample of x=12.5% doping. A procedure of obtaining phase transition peaks by modeling the background of acquired data is presented. We report detection of peaks in the specific heat of mentioned samples which could be related to a new form of order. If the theoretically predicted ferronematic is this kind of order, it has the potential of deepening our understanding of cuprate superconductors
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
GAMER SLANG AS A LINGUA FRANCA
No full text42
Sažetak
GEJMERSKI SLANG KAO LINGUA FRANCA
Gejmerska zajednica jedna je od najbrže rastućih zajednica na svijetu te ima više od 3 milijarde igrača različitih uzrasta i rodnih identiteta. Nastankom ove zajednice nastaje i osjećaj pripadnosti i identiteta te se u konačnici konstruira i jezik – gejmerski žargon, kojim se igrači služe kad komuniciraju u igri ili o igranju. Jezik kojim se većina igrača služi jest engleski jezik, zahvaljujući njegovoj rasprostranjenosti i statusu koji ima kao lingua franca. Gejmerski jezik zasniva se na načelima kratkoće, jasnoće i jednostavnosti. Ova tri načela počivaju na činjenici da je za uspješnu igru potrebna brza i izravna komunikacija kako bi se poruka prenijela u što kraćem roku i omogućila pobjedu nad suparničkim timom. Hrvatski gejmeri u komunikaciji s igračima iz drugih govornih područja također se koriste engleskim jezikom, dok se u komunikaciji s igračima iz hrvatskog govornog područja koriste i hrvatskim jezikom, ali i prilagođenim engleskim jezikom. Određene engleske riječi prilagođavaju tako što im dodaju prefikse ili sufikse koji su karakteristični za hrvatski jezik, mijenjaju značenje nekih riječi ili pak u pismu koriste fonetizirani oblik riječi. One riječi koje se ne mogu prilagoditi tako da ostanu kratke i jasne, koriste u izvornom obliku.
Ovaj je rad kratki uvod u svijet hrvatske gejmerske zajednice, a daje i uvid u način nastanka određenih riječi kojima se oni svakodnevno koriste. Ovu temu potrebno je podrobnije istražiti i u Hrvatskoj i u svijetu, a sve kako bi se bolje percipirao utjecaj gejmerske zajednice i njihova idioma u svakodnevnom životu i javnoj komunikaciji.The gaming community is one of the fastest growing communities in the world and consists of more than 3 billion players which vary by age and gender. As a result, a new type of jargon has appeared – gamer jargon which is used while gaming or talking about gaming. Gamer jargon provides the sense of belonging and identity. The language used by most of the players is the English language, as a consequence of its distribution and status as a lingua franca and it serves the purpose of easy and understandable communication. Gamer jargon is based on the principles of brevity, clarity, and simplicity. These three principles are based on the fact that swift and direct communication is needed in order to have a successful gaming session. The message needs to be delivered as fast as possible to ensure the status of a victor. While communicating with foreign gamers, Croatian gamers use the English language, whereas when communicating with Croatian players, there is a tendence to use the English language as well as the ‘adapted’ Croatian language. Certain English words are adapted by adding prefixes and suffixes characteristic for the Croatian language, by changing the meaning of certain words or by using phonetized words. Those words that cannot be adapted or translated to remain brief and clear are being used in their original form.
This thesis can serve as a brief introduction to the world of the Croatian gaming community and as an insight in the everyday words which are beingused by Croatian gamers. This topic requires further research, in Croatia, as well as in the world, in order to grasp a better understanding of the influence this gaming community and its idiom hold in everyday life and public communication
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