The fall of a symbol? A high predation rate by the introduced horseshoe whip snake Hemorrhois hippocrepis paints a bleak future for the endemic Ibiza wall lizard Podarcis pityusensis

Invasive species currently account for a major threat to global biodiversity, and island ecosystems are among the most vulnerable, because of the frequency and success of species introductions on islands. Within Mediterranean islands, reptiles not only are frequently introduced species but are also among the most threatened because of these introductions. The Balearic archipelago is a good example of this, since only two of its current 16 species of reptiles are native. Thirteen years ago, the snake Hemorrhois hippocrepis was introduced by cargo in Ibiza island, and it is in expansion. Individuals obtained from an early eradication campaign showed a fast expression of phenotypic plasticity and acquired larger sizes than those of the source population, probably due to a high prey availability and predator scarcity. The species is thriving at the expense of a small variety of native and non-native prey, but the predation pressure on the endemic Podarcis pityusensis, the only native reptile in the island, is very high, as this lizard represents 56% of the prey in frequency, which might threaten its survival on the long term. Our results on the feeding ecology of the snake are of sufficient concern to justify the maintenance of actions to eradicate this invader.Peer reviewe

Nature s Top 100 Re-Revisited

"This is the peer reviewed version of the following article: Martín-Martín, A., Ayllon, J. M., López-Cózar, E. D., & Orduna-Malea, E. (2015). Nature's top 100 Re-revisited. JASIST, 66(12), 2714., which has been published in final form at http://doi.org/10.1002/asi.23570. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving."To mark the 50th anniversary of the Science Citation Index, Nature published a list of the 100 most-cited papers of all time. It also included an alternative ranking from data provided by Google Scholar, which, as this letter illustrates, contains certain inconsistencies. This does not, however, diminish the usefulness of Google Scholar, not only in identifying the most-cited articles of all time, but also in reflecting the impact of other document types (especially books), thus redefining the concept of academic impact. Keywords:Martín-Martín, A.; Ayllón, JM.; Delgado López-Cózar, E.; Orduña Malea, E. (2015). Nature s Top 100 Re-Revisited. Journal of the American Society for Information Science and Technology. 66(12):2714-2714. doi:10.1002/asi.23570271427146612Bornmann , L. Nature's top 100 revisited. Journal of the Association for Information Science and Technology http://www.lutz-bornmann.de/icons/top_100.pdfGarfield , E. 2005 The agony and the ecstasy-the history and meaning of the Journal Impact Factor http://www.garfield.library.upenn.edu/papers/jifchicago2005.pdfMartin-Martin , A. Orduna-Malea , E. Ayllon , J.M. Delgado Lopez-Cozar , E. 2014 Does Google Scholar contain all highly cited documents (1950-2013)? http://arxiv.org/abs/1410.8464Van Noorden, R., Maher, B., & Nuzzo, R. (2014). The top 100 papers. Nature, 514(7524), 550-553. doi:10.1038/514550

The lost academic home: institutional affiliation links in Google Scholar Citations

This article is (c) Emerald Group Publishing and permission has been granted for this version to appear here (please insert the web address here). Emerald does not grant permission for this article to be further copied/distributed or hosted elsewhere without the express permission from Emerald Group Publishing Limited[EN] Purpose - Google Scholar Citations (GSC) provides an institutional affiliation link which groups together authors who belong to the same institution. The purpose of this paper is to ascertain whether this feature is able to identify and normalize all the institutions entered by the authors, and whether it is able to assign all researchers to their own institution correctly. Design/methodology/approach - Systematic queries to GSC's internal search box were performed under two different forms (institution name and institutional e-mail web domain) in September 2015. The whole Spanish academic system (82 institutions) was used as a test. Additionally, specific searches to companies (Google) and world-class universities were performed to identify and classify potential errors in the functioning of the feature. Findings - Although the affiliation tool works well for most institutions, it is unable to detect all existing institutions in the database, and it is not always able to create a unique standardized entry for each institution. Additionally, it also fails to group all the authors who belong to the same institution. A wide variety of errors have been identified and classified. Research limitations/implications - Even though the analyzed sample is good enough to empirically answer the research questions initially proposed, a more comprehensive study should be performed to calibrate the real volume of the errors. Practical implications - The discovered affiliation link errors prevent institutions from being able to access the profiles of all their respective authors using the institutions lists offered by GSC. Additionally, it introduces a shortcoming in the navigation features of Google Scholar which may impair web user experience. Social implications - Some institutions (mainly universities) are under-represented in the affiliation feature provided by GSC. This fact might jeopardize the visibility of institutions as well as the use of this feature in bibliometric or webometric analyses. Originality/value - This work proves inconsistencies in the affiliation feature provided by GSC. A whole national university system is systematically analyzed and several queries have been used to reveal errors in its functioning. The completeness of the errors identified and the empirical data examined are the most exhaustive to date regarding this topic. Finally, some recommendations about how to correctly fill in the affiliation data (both for authors and institutions) and how to improve this feature are provided as well.Orduña Malea, E.; Ayllón, JM.; Martín-Martín, A.; Delgado-López-Cózar, E. (2017). The lost academic home: institutional affiliation links in Google Scholar Citations. Online Information Review. 41(6):762-781. doi:10.1108/OIR-10-2016-0302S76278141

Proceedings Scholar Metrics: H Index of proceedings on Computer Science, Electrical & Electronic Engineering, and Communications according to Google Scholar Metrics (2011-2015)

The objective of this report is to present a list of proceedings (conferences, workshops, symposia, meetings) in the areas of Computer Science, Electrical & Electronic Engineering, and Communications covered by Google Scholar Metrics and ranked according to their h-index. Google Scholar Metrics only displays publications that have published at least 100 papers and have received at least one citation in the last five years (2010-2014). The searches were conducted between the 7th and 12th of December, 2016. A total of 1634 proceedings have been identified.Martín-Martín, A.; Ayllón, JM.; Orduña Malea, E.; Delgado López-Cózar, E. (2016). Proceedings Scholar Metrics: H Index of proceedings on Computer Science, Electrical & Electronic Engineering, and Communications according to Google Scholar Metrics (2011-2015). http://hdl.handle.net/10251/11237

The silent fading of an academic search engine: the case of Microsoft Academic Search

Purpose - The purpose of this paper is to describe the obsolescence process of Microsoft Academic Search (MAS) as well as the effects of this decline in the coverage of disciplines and journals, and their influence in the representativeness of organizations. Design/methodology/approach - The total number of records and those belonging to the most reputable journals (1,762) and organizations (346) according to the Field Rating indicator in each of the 15 fields and 204 sub-fields of MAS, have been collected and statistically analysed in March 2014, by means of an automated querying process via http, covering academic publications from 1700 to present. Findings - MAS has no longer been updated since 2013, although this phenomenon began to be glimpsed in 2011, when its coverage plummeted. Throughout 2014, indexing of new records is still ongoing, but at a minimum rate, without following any apparent pattern. Research limitations/implications - There are also retrospective records being indexed at present. In this sense, this research provides a picture of what MAS offered during March 2014 being queried directly via http. Practical implications - The unnoticed obsolescence of MAS affects to the quality of the service offered to its users (both those who engage in scientific information seeking and also those who use it for quantitative purposes). Social implications - The predominance of Google Scholar (GS) as monopoly in the academic search engines market as well as the prevalence of an open construction model (GS) vs a closed model (MAS). Originality/value - A complete longitudinal analysis of disciplines, journals and organizations on MAS has been performed for the first time identifying an unnoticed obsolescence. Any public explanation or disclaimer note has been announced from the responsible company, something incomprehensible given its implications for the reliability and validity of bibliometric data provided on disciplines, journals, authors and congress as well as their fair representation on the academic search engine.This research was funded under Project HAR2011-30383-C02-02 from Direccion General de Investigacion y Gestion del Plan Nacional de I+D+I (Ministry of Economy and Competitiveness) and Project APOSTD/2013/002 from the Regional Ministry of Education, Culture and Sport (Generalitat Valenciana) in Spain.Orduña Malea, E.; Martín-Martín, A.; Ayllón, JM.; Delgado-López-Cózar, E. (2014). The silent fading of an academic search engine: the case of Microsoft Academic Search. Online Information Review. 38(7):936-953. https://doi.org/10.1108/OIR-07-2014-0169S936953387Beel, J. , Gipp, B. and Wilde, E. (2010), “Academic search engine optimization (ASEO)”, Journal of Scholarly Publishing, Vol. 41 No. 2, pp. 176-190.Butler, D. (2011), “Computing giants launch free science metrics: new Google and Microsoft services promise to democratize citation data”, Nature, Vol. 476 No. 7358, p.Carlson, S. (2006), “Challenging Google, Microsoft unveils a search tool for scholarly articles”, Chronicle of Higher Education, Vol. 52 No. 33, p.Delgado-López-Cózar, E., & Cabezas-Clavijo, Á. (2013). Ranking journals: could Google Scholar Metrics be an alternative to Journal Citation Reports and Scimago Journal Rank? Learned Publishing, 26(2), 101-113. doi:10.1087/20130206Delgado López-Cózar, E., Robinson-García, N., & Torres-Salinas, D. (2013). The Google scholar experiment: How to index false papers and manipulate bibliometric indicators. Journal of the Association for Information Science and Technology, 65(3), 446-454. doi:10.1002/asi.23056Haley, M. R. (2014). Ranking top economics and finance journals using Microsoft academic search versus Google scholar: How does the new publish or perish option compare? Journal of the Association for Information Science and Technology, 65(5), 1079-1084. doi:10.1002/asi.23080Haustein, S., Peters, I., Bar-Ilan, J., Priem, J., Shema, H., & Terliesner, J. (2014). Coverage and adoption of altmetrics sources in the bibliometric community. Scientometrics, 101(2), 1145-1163. doi:10.1007/s11192-013-1221-3Jacsó, P. (2005), “As we may search – comparison of major features of the Web of Science, Scopus, and Google Scholar”, Current Science, Vol. 89 No. 9, pp. 1537-1547.Jacsó, P. (2008). Google Scholar revisited. Online Information Review, 32(1), 102-114. doi:10.1108/14684520810866010Jacsó, P. (2011). The pros and cons of Microsoft Academic Search from a bibliometric perspective. Online Information Review, 35(6), 983-997. doi:10.1108/14684521111210788Jacsó, P. (2012). Google Scholar Metrics for Publications. Online Information Review, 36(4), 604-619. doi:10.1108/14684521211254121Khabsa, M. and Giles, C.L. (2014), “The number of scholarly documents on the public web”, PloS One, Vol. 9 No. 5, p.Labbé, C. (2010), “Ike Antkare one of the greatest stars in the scientific firmament”, ISSI Newsletter, Vol. 6 No. 1, pp. 48-52.Orduña-Malea, E., & Delgado López-Cózar, E. (2013). Google Scholar Metrics evolution: an analysis according to languages. Scientometrics, 98(3), 2353-2367. doi:10.1007/s11192-013-1164-8Ortega, J. L. (2014). Influence of co-authorship networks in the research impact: Ego network analyses from Microsoft Academic Search. Journal of Informetrics, 8(3), 728-737. doi:10.1016/j.joi.2014.07.001Ortega, J. L., & Aguillo, I. F. (2013). Institutional and country collaboration in an online service of scientific profiles: Google Scholar Citations. Journal of Informetrics, 7(2), 394-403. doi:10.1016/j.joi.2012.12.007Ortega, J. L., & Aguillo, I. F. (2014). Microsoft academic search and Google scholar citations: Comparative analysis of author profiles. Journal of the Association for Information Science and Technology, 65(6), 1149-1156. doi:10.1002/asi.23036Van Noorden, R. (2014). Online collaboration: Scientists and the social network. Nature, 512(7513), 126-129. doi:10.1038/512126

Plasma physics and control studies planned in JT-60SA for ITER and DEMO operations and risk mitigation

Lista completa de autores: Yoshida, M. ; Giruzzi, G.; Aiba, N.; Artaud, J. F.; Ayllon-Guerola, J.; Balbinot, L.; Beeke, O.; Belonohy, E.; Bettini, P.; Bin, W.; Bierwage, A.; Bolzonella, T.; Bonotto, M.; Boulbe, C.; Buermans, J.; Chernyshova, M.; Coda, S.; Coelho, R.; Davis, S.; Day, C.; De Tommasi, G.; Dibon, M.; Ejiri, A.; Falchetto, G.; Fassina, A.; Faugeras, B.; Figini, L.; Fukumoto, M.; Futatani, S.; Galazka, K.; García, J.; García-Muñoz, M.; Garzotti, L.; Giacomelli, L.; Giudicotti, L.; Hall, S.; Hayashi, N.; Hoa, C.; Honda, M.; Hoshino, K.; Iafrati, M.; Iantchenko, A.; Ide, S.; Iio, S.; Imazawa, R.; Inoue, S.; Isayama, A.; Joffrin, E.; Kamiya, K.; Ko, Y.; Kobayashi, M.; Kobayashi, T.; Kocsis, G.; Kovacsik, A.; Kurki-Suonio, T.; Lacroix, B.; Lang, P.; Lauber, P.; Louzguiti, A.; Luna, E. de la; Marchiori, G.; Mattei, M.; Matsuyama, A.; Mazzi, S.; Mele, A.; Michel, F.; Miyata, Y.; Morales, J.; Moreau, P.; Moro, A.; Nakano, T.; Nakata, M.; Narita, E.; Neu, R.; Nicollet, S.; Nocente, M.; Nowak, S.; Orsitto, F. P.; Ostuni, V.; Ohtani, Y.; Oyama, N.; Pasqualotto, R.; Pegourie, B.; Perelli, E.; Pigatto, L.; Piccinni, C.; Pironti, A.; Platania, P.; Ploeckl, B.; Ricci, D.; Roussel, P.; Rubino, G.; Sano, R.; Sarkimaki, K.; Shinohara, K.; Soare, S.; Sozzi, C.; Sumida, S.; Suzuki, T.; Suzuki, Y.; Szabolics, T.; Szepesi, T.; Takase, Y.; Takech, M.; Tamura, N.; Tanaka, K.; Tanaka, H.; Tardocchi, M.; Terakado, A.; Tojo, H.; Tokuzawa, T.; Torre, A.; Tsujii, N.; Tsutsui, H.; Ueda, Y.; Urano, H.; Valisa, M.; Vallar, M.; Vega, J.; Villone, F.; Wakatsuki, T.; Wauters, T.; Wischmeier, M.; Yamoto, S.; Zani, L.A large superconducting machine, JT-60SA has been constructed to provide major contributions to the ITER program and DEMO design. For the success of the ITER project and fusion reactor, understanding and development of plasma controllability in ITER and DEMO relevant higher beta regimes are essential. JT-60SA has focused the program on the plasma controllability for scenario development and risk mitigation in ITER as well as on investigating DEMO relevant regimes. This paper summarizes the high research priorities and strategy for the JT-60SA project. Recent works on simulation studies to prepare the plasma physics and control experiments are presented, such as plasma breakdown and equilibrium controls, hybrid and steady-state scenario development, and risk mitigation techniques. Contributions of JT-60SA to ITER and DEMO have been clarified through those studies.Comisión Europea - EURATOM 63305

Advances in the physics studies for the JT-60SA tokamak exploitation and research plan

JT-60SA, the largest tokamak that will operate before ITER, has been designed and built jointly by Japan and Europe, and is due to start operation in 2020. Its main missions are to support ITER exploitation and to contribute to the demonstration fusion reactor machine and scenario design. Peculiar properties of JT-60SA are its capability to produce long-pulse, high-β, and highly shaped plasmas. The preparation of the JT-60SA Research Plan, plasma scenarios, and exploitation are producing physics results that are not only relevant to future JT-60SA experiments, but often constitute original contributions to plasma physics and fusion research. Results of this kind are presented in this paper, in particular in the areas of fast ion physics, highbeta plasma properties and control, and non-linear edge localised mode stability studies.EURATOM 63305

Índice H de las Revistas Científicas Españolas según Google Scholar Metrics (2010-2014)

Se presentan rankings por campos científicos y disciplinas de las revistas científicas españolas que figuran en Google Scholar Metrics (GSM). Se ordenan de acuerdo con el índice h que es el indicador bibliométrico adoptado por Google. Se pretende con este trabajo comprobar la amplitud en la cobertura que posee Google Scholar Metrics de las revistas científicas españolas. Los dos criterios utilizados por Google Scholar Metrics para incluir revistas en su producto son: contar con 100 trabajos publicados y poseer al menos una cita. Las búsquedas bibliográficas se efectuaron entre el 8 y el 10 de julio de 2015. Se han identificado 1069 revistas, de las que 560 son de Ciencias Sociales, 248 de Arte y Humanidades, 142 de Ciencias de la Salud y 119 de Ciencias Naturales e Ingenierías.Ayllón, JM.; Martín-Martín, A.; Orduña Malea, E.; Delgado López-Cózar, E. (2015). Índice H de las Revistas Científicas Españolas según Google Scholar Metrics (2010-2014). http://hdl.handle.net/10251/11238

Índice H de las Revistas Científicas Españolas según Google Scholar Metrics (2011-2015)

Se presentan rankings por campos científicos y disciplinas de las revistas científicas españolas que figuran en Google Scholar Metrics (GSM). Se ordenan de acuerdo con el índice h que es el indicador bibliométrico adoptado por Google. Se pretende con este trabajo comprobar la amplitud en la cobertura que posee Google Scholar Metrics de las revistas científicas españolas. Los dos criterios utilizados por Google Scholar Metrics para incluir revistas en su producto son: contar con 100 trabajos publicados y poseer al menos una cita. Las búsquedas bibliográficas se efectuaron entre el 18 y el 21 de julio de 2016. Se han identificado 1299 revistas, de las que 645 son de Ciencias Sociales, 337 de Arte y Humanidades, 177 de Ciencias de la Salud y 140 de Ciencias Naturales e Ingenierías.Ayllón, JM.; Martín-Martín, A.; Orduña Malea, E.; Delgado López-Cózar, E. (2016). Índice H de las Revistas Científicas Españolas según Google Scholar Metrics (2011-2015). http://hdl.handle.net/10251/11237

『青山評論』記者三浦泰一郎論 -北村透谷との接点を辿って-

This research work is centred on continental lacustrine gypsum deposits of Miocene age cropping out in the easternmost part of the Madrid Basin. These gypsum deposits, accumulated in a continental saline lake, are characterized by a spectacular, distinctive Christmas-tree morphology and a peculiar dolomite replacement. A combination of microscopic (petrography and scanning electron microscopy) and analytical techniques (fluid inclusion microthermometry, X-ray energy dispersive spectroscopy and X-ray diffractometry) was used in order to study the crystallographic distribution and the composition of the fluid inclusions within the gypsum. The objectives were to characterize the continental brine from which the mineral precipitated, and to detect mineral and element traces that could indicate early diagenetic processes altering the gypsum deposits. Data from primary fluid inclusions indicated that gypsum precipitated from an aqueous fluid (lake water) of low to moderate total salinity (between 20 and 90 g/L NaCl). Secondary fluid inclusions represent interstitial lake brine in contact with gypsum, slightly enriched in total salt content as crystal formation proceeded. Textural, ultrastructural and microanalytical analysis indicate that the presence of dolomite precipitates inside the gypsum layers is related to the microbial colonization of the gypsum deposits and the biomineralization of the cell walls and extracellular polymeric substances around the cells. Our investigation emphasizes necessity of a multidisciplinary approach to assess geobiological processes