186,928 research outputs found
P. Mentz Influence des excitations auditives sur le pouls et la respiration
No full textHenri Victor. P. Mentz Influence des excitations auditives sur le pouls et la respiration. In: L'année psychologique. 1896 vol. 3. pp. 390-401
Arthur Mentz. Geschichte und Systeme der Tachygraphie.
No full textRuelle Charles-Émile. Arthur Mentz. Geschichte und Systeme der Tachygraphie.. In: Journal des savants. 7ᵉ année, Mai 1909. p. 235
Cyclical components of local rainfall data
No full textThis paper reports on the use of a comparatively simple statistical methodology to study local short time series rainfall data. The objective is to help in agricultural planning, by disminishing the risk associated with some uncertainties affecting this business activity. The analysis starts by assming a model of unobservable components, trend, cycle, seasonal and irregular, that is well known in many areas of application. When series are in the realm of business and economics, the statistical methods popularized by the US Census Bureau and US National Bureau of Economic Research are used for seasonal and cyclical estimation, respectively. The flexibility of these methods makes them good candiates to be applied in the meteorological context, and this is done in this paper for a selection of monthly rainfall time series. Use of the results to help in analysing and forecasting cyclical components is emphasized. The results are interesting. An agricultural entrepreneur, or a group of them located in a single ggeografical region, will profit by systematically collecting information (monthly in our work) about rainfall, and adopting the scheme of analysis described in this paper.Fil: Mentz, Raul Pedro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Estudios Sociales. Universidad Nacional de Tucumán. Instituto Superior de Estudios Sociales; ArgentinaFil: D'Urso, M.A.. Universidad Nacional de Tucumán. Facultad de Ciencias Económicas; ArgentinaFil: Jarma, Nora Monica. Universidad Nacional de Tucumán. Facultad de Ciencias Económicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; ArgentinaFil: Mentz, G.B.. Universidad Nacional de Tucumán. Facultad de Ciencias Económicas; Argentin
Brígida von Mentz. Verena Radkau. Beatriz Scharrer y Guillermo Turner. Los pioneros del imperialismo alemán en México. México. Ediciones La Casa Chata. 1982. 522 p.
No full textReseña del libro "Los pioneros del imperialismo alemán en México" de Brígida von Mentz, Verena Radkau, Beatriz Scharrer y Guillermo Turner es un estudio exhaustivo sobre la llegada y asentamiento de inmigrantes alemanes en México durante el siglo XIX. A través de un enfoque multidisciplinario, los autores analizan las motivaciones económicas y sociales que llevaron a estos inmigrantes a establecerse en el país, así como su impacto en la sociedad mexicana. El texto forma parte de un proyecto más amplio sobre las minorías étnicas en México y ofrece una visión detallada de cómo los alemanes mantuvieron su identidad cultural mientras contribuían al desarrollo económico del paísUniversidad Nacional Autónoma de México, Instituto de Investigaciones Histórica
Brígida von Mentz, Verena Radkau, Daniela Spenser y Ricardo Pérez Montfort, Los empresarios alemanes, el tercer Reich y la oposición de derecha a Cárdenas
No full textEn este trabajo colectivo, Brígida von Mentz, Verena Radkau, Daniela Spenser y Ricardo Pérez Montfort analizan la influencia de los empresarios alemanes en México durante el ascenso del Tercer Reich y su relación con la oposición de derecha al gobierno de Lázaro Cárdenas. A través de un enfoque multidisciplinario, los autores exploran los aspectos económicos, sociales y políticos que caracterizaron esta época, así como las implicaciones de la ideología fascista en el contexto mexicanoUniversidad Nacional Autónoma de México, Instituto de Investigaciones Histórica
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe 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
No full textWe 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
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