306,436 research outputs found
SEGURIDAD E HIGIENE EN LA MANIPULACION DE ALIMENTOS
No full textMerchan Lucas, Iván; director de proyecto: González Salas, Aurora2024-2025Curso de Formación Pedagógica y Didáctica para Profesorado de Formación Profesional y DeportivaFacultad de Ciencias de la Educació
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
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
Author, publisher and bookseller : a tripartite synergy in Nigerian book industry
No full textThis work is about the roles of Author, Publisher and Bookseller in Book development in
Nigeria. The paper started by delving into the history of Book Publishing in Nigeria after
which it proceeded by defining who an author, a publisher, and a bookseller is and
expatiated on the indispensable roles of these key actors in Nigerian Book Industry and in
the emerging Information Society. Furthermore, the various constraints to book
development were identified while the paper advised on how the Book Industry can be
further promoted in Nigeria. However, the paper concluded and made recommendations
on how the Book sector can help in enhancing scholarship in the country
Priuilegia praecipua Congregationi Sancti Benedicti Vallisoletani á Summis Pontificibus concessa & confirmata : cum indice locupletissimo.
No full textExisten al menos dos emisiones de esta ed., la otra no lleva colofón de 1599 y en su lugar solo consta la marca tip. de Merchan (Vindel, 400). La que se describe aquí además: en el recto de la h. con sign. e\b4\s lo que sería la lín 5 está en bl. (así como parte de la lin. anterior y posterior); la h. 2I\b2\s verso lleva 30 lín. de texto y en su última lin. se lee: "cimus impressione communiri. Dat"Colofón y marca tip. (Vindel, 400) en el recto de la última hSign. : a-e\p4\s, A-Z\p8\s, 2A-2G\p8\s, 2H-2I\p4\sError tip. de fol. en la última h. numeradaPort. con grab. calc. de San BenitoVltimum priuilegium Clementis Papae VIII concessum Congregationi Sancti Benedicti Vallisoletani, Anno ... Millesimo Quingentesimo Nonagesimo Sexto, h. con sign. 2H\b4\s v. -2I\b2\s vers
[Report to Chief J. E. Curry, by an unknown author #2]
No full textReport to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney
[Report to Chief J. E. Curry, by an unknown author #1]
No full textReport to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney
Priuilegia praecipua Congregationi Sancti Benedicti Vallisoletani á Summis Pontificibus concessa & confirmata : cum indice locupletissimo.
No full textPor existir variantes en la ed. de esta obra con fecha en port. de 1595, añadimos algún dato que puede ayudar a diferenciar: en ésta la última h. de prelim. (la h. e\b4\s) está en cursiva, además en la 4ª lin. del recto (de la misma h.) consta "quod nos Alfonsus de Mendoça Dei ...", la fol. numerada es de 244 h. y finaliza la obra con un cuadernillo con sign. a\p3\s (que ya hemos hecho constar anteriormente)Colofón en h. 244 v. en el que consta: Pintiae : apud Andraeam de Merchan ..., 1595Sign. : a-e\p4\s, A-Z\p8\s, 2A-2G\p8\s, 2H\p4\s, a\p3\sPort. con grab. calc. de San BenitoVltimum priuilegium Clementis Papae VIII concessum Congregationi Sancti Benedicti Vallisoletani, anno ... millesimo quingentesimo nonagesimo sexto, [3] h. (finales
A novel experimental model and a drag-optimal allocation method for variable-pitch propellers in multirotors
No full textThis paper proposes a new mathematical model to map the rotational speed and angle of attack (pitch) of small-size propellers typically used in multirotors and the aerodynamic thrust force and drag moment produced by the propeller itself. The new model is inspired by standard models using the blade-element and momentum theories, which have been suitably modified in order to allow for explicit fast computation of the direct and inverse map (useful for high-frequency control) and obtain a better adherence to experimental data. The new model allows and captures all the main nonlinear characteristics of the thrust/drag generation. An extensive experimental comparison shows that the prediction capability of the proposed model outperforms the most commonly used models at date. In the second part of the paper, two optimization methods are proposed in order to exploit the redundancy of the inputs of variable-pitch propellers to decrease the power consumption due to the drag dissipation. The first method deals with the optimal allocation for thrust generation on a single propeller, while the second method is aimed at solving the optimal allocation of the rotational speed and pitch of all the propellers in a multi-rotor with any number of propellers. Simulations results show the viability and effectiveness of the proposed methods
- …
