126,771 research outputs found
KRAL - 1973
No full textEntre 1973 i 1976
Alguns dels components del KRAL en una sortida al Castell de Montsoriu.
Veiem a Xavier Cabestany, Carme Álvarez i Carles Cristi
KRAL - 1973
No full textEntre 1973 i 1976
Alguns dels components del KRAL en una sortida.
Veiem a Carme Álvarez, ?, Ricard Tos
KRAL - 1973
No full textEntre 1973 i 1976
Alguns dels components del KRAL en una sortida
Veiem a Carles Cristià, Montse Marés, Xavier Cabestany, Carme Álvarez, Neus Güell,
KRAL - 1973
No full textEntre 1973 i 1976
Alguns dels components del KRAL en una sortida al Castell de Montsoriu.
Identifiquem a Carme Álvarez, Xavier Cabestany, Carles Cristi
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
Progetto per componenti automotive
No full textI dati attualmente disponibili ai progettisti sul comportamento meccanico a fatica delle leghe d’alluminio da fonderia sono svariati, ma sfortunatamente, non essendo organizzati in maniera organica, risultano di difficile reperibilità. Da qui è sembrata evidente la necessità di sviluppare un database che raccogliesse e organizzasse, in modo strutturato, le informazioni attualmente disponibili sulle caratteristiche a fatica delle leghe d’alluminio da fonderia. La decisione di implementare questo database proprio su questa tipologia di leghe è accompagnata poi dal loro crescente utilizzo in ambito tecnico e industriale; tali leghe offrono infatti una elevata versatilità, favorendone l’utilizzo in svariati settori. Componenti strutturali realizzati in leghe d’alluminio sono vitali nell’industria aerospaziale, e in altri settori, quali quello dei trasporti e delle costruzioni, nei quali leggerezza, durata e resistenza statico-dinamica sono necessari
The chemopreventive polyphenol Curcumin prevents hematogenous breast cancer metastases in immunodeficient mice
No full textDissemination of metastatic cells probably occurs long before diagnosis of the primary tumor. Metastasis during early phases of carcinogenesis in high risk patients is therefore a potential prevention target. The plant polyphenol Curcumin has been proposed for dietary prevention of cancer. We therefore examined its effects on the human breast cancer cell line MDA-MB-231 in vitro and in a mouse metastasis model. Curcumin strongly induces apoptosis in MDA- MB- 231 cells in correlation with reduced activation of the survival pathway NF kappa B, as a consequence of diminished I kappa B and p65 phosphorylation. Curcumin also reduces the expression of major matrix metalloproteinases (MMPs) due to reduced NF kappa B activity and transcriptional downregulation of AP-1. NF kappa B/p65 silencing is sufficient to downregulate c-jun and MMP expression. Reduced NF kappa B/AP-1 activity and MMP expression lead to diminished invasion through a reconstituted basement membrane and to a significantly lower number of lung metastases in immunodeficient mice after intercardiac injection of 231 cells (p=0.0035). 68% of Curcumin treated but only 17% of untreated animals showed no or very few lung metastases, most likely as a consequence of down-regulation of NF kappa B/AP-1 dependent MMP expression and direct apoptotic effects on circulating tumor cells but not on established metastases. Dietary chemoprevention of metastases appears therefore feasible. Copyright (c) 2007 S. Karger AG, Basel
Pragmatic Case Studies as a Source of Unity in Applied Psychology
No full textTo unify or not to unify applied psychology: that is the question. In this article we review pendulum swings in the historical efforts to answer this question—from a comprehensive, positivist, “top-down,” deductive yes between the 1930s and the early 60s, to a postmodern no since then. A rationale and proposal for a limited, “bottom-up,” inductive yes in applied psychology is then presented, employing a case-based paradigm that integrates both positivist and postmodern themes and components. This paradigm is labeled “pragmatic psychology” and, its specific use of case studies, the “Pragmatic Case Study Method” (“PCS Method”). We call for the creation of peer-reviewed journal-databases of pragmatic case studies as a foundational source of unifying applied knowledge in our discipline. As one example, the potential of the PCS Method for unifying different angles of theoretical regard is illustrated in an area of applied psychology, psychotherapy, via the case of Mrs. B. The article then turns to the broader historical and epistemological arguments for the unifying nature of the PCS Method in both applied and basic psychology.Peer reviewe
mbvoigt/AnodicICMS: Matlab scripts for manuscript Voigt&Kral: "Cathodic-leading pulses..."
No full text<p>This is the first release of the Matlab scripts used to analyze the data and prepare the figures for the manuscript entitled "Cathodic-leading pulses are more effective than anodic-leading pulses in intracortical microstimulation of the auditory cortex" by Mathias B. Voigt and Andrej Kral.</p>
- …
