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  • 2010-2014  (301)
  • 1945-1949  (1)
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  • 1
    Book
    Book
    Paris : ICC Publishing S.A.
    Keywords: Foreign trade regulation ; Export sales contracts
    Type of Medium: Book
    Pages: 270 S. , Ill.
    Edition: 4. ed.
    ISBN: 9789284201334
    Language: English
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  • 2
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    Barcelona: Elsevier España
    Publication Date: 2019-11-08
    Description: Although there is a general recognition in the literature that training improves a firm's performance, empirical research does not always provide evidence to support this effect. One possible explanation is that training does not have a direct effect on performance but an indirect effect by improving other organizational outcomes. This paper suggests that organizational learning is one of those variables and that it mediates the relationship between training and performance and that the adoption of a learning-oriented training enhances performances through its positive effect on organizational learning. Using a sample of Spanish firms we obtain empirical evidence, which supports the view that this mediating effect is present."
    Keywords: ddc:650 ; Training ; Performance ; Organizational learning ; Mediation
    Language: English
    Type: doc-type:article
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  • 3
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    Mering: Hampp
    Publication Date: 2013-10-19
    Description: This paper carries out an empirical assessment of the influence relationship between personal attitudes and several measures of social capital in some Central European Countries (CEC). Using the World Values Survey dataset, the model measures three main social capital dimensions (institutional trust, social participation and political participation) and four personal attitudes factors (collectiveness, education, gender differences and work). The analysis provides relevant information about personal determinant of social capital, in its political approach and, also, about the key role of institutional trust for civic engagement in social and political participation.
    Description: Dieser Artikel führt eine empirische Untersuchung über den Einfluss der Beziehung zwischen persönlichen Eigenschaften und verschiedenen Maßzahlen von Sozialkapital in mehreren zentraleuropäischen Ländern durch. Das Modell zieht den Datensatz des World Values Survey heran und misst drei Hauptdimensionen von Sozialkapital (Vertrauen in Institutionen, gesellschaftliche und politische Teilhabe). Außerdem bestimmt es noch vier Faktoren für persönliche Eigenschaften (Kollektivität, Erziehung, Geschlechterunterschiede und Arbeit) durch synthetische Indikatoren. Die Analyse liefert, in ihrer politischen Herangehensweise, relevante Informationen über die Bestimmungsgröße von Sozialkapital und über die Schlüsselrolle von Vertrauen in Institutionen für bürgerliches Engagement bei gesellschaftlicher und politischer Teilhabe.
    Keywords: ddc:650 ; Central European countries ; civic engagement ; PLS models ; social capital ; trust
    Language: English
    Type: doc-type:article
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  • 4
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    MDPI Publishing
    In: Sensors
    Publication Date: 2012-03-27
    Description: In this paper we present a neuro-inspired spike-based close-loop controller written in VHDL and implemented for FPGAs. This controller has been focused on controlling a DC motor speed, but only using spikes for information representation, processing and DC motor driving. It could be applied to other motors with proper driver adaptation. This controller architecture represents one of the latest layers in a Spiking Neural Network (SNN), which implements a bridge between robotics actuators and spike-based processing layers and sensors. The presented control system fuses actuation and sensors information as spikes streams, processing these spikes in hard real-time, implementing a massively parallel information processing system, through specialized spike-based circuits. This spike-based close-loop controller has been implemented into an AER platform, designed in our labs, that allows direct control of DC motors: the AER-Robot. Experimental results evidence the viability of the implementation of spike-based controllers, and hardware synthesis denotes low hardware requirements that allow replicating this controller in a high number of parallel controllers working together to allow a real-time robot control.
    Electronic ISSN: 1424-8220
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Published by MDPI Publishing
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  • 5
    Publication Date: 2013-04-11
    Description: Background: Some recent experimental data suggest a possible role of LINGO-1 in the pathogenesis of multiple sclerosis (MS). In an attempt to identify genetic biomarkers related to MS susceptibility, we genotyped two common SNPs in the LINGO1 gene which have been associated to other neurological conditions, in patients with MS and in healthy subjects. These SNPs are linked to several SNPs within the LINGO1 gene, especially in individuals of Oriental or Caucasian descent. Methods: We analyzed the allelic and genotype frequency of two LINGO1 variants (rs9652490 and rs11856808) in 293 patients with MS and 318 healthy controls, using KASPar assays. Results: LINGO1 rs9652490 and rs11856808 allelic and genotype frequencies did not differ significantly between MS patients and controls. The minor allele frequencies for rs9652490 were 0.171 (95% CI = 0.140-0.201) and 0.167 (95% CI = 0.138-0.196 for cases and controls respectively (p = 0.853). For rs11856808 the minor allele frequencies were 0.317 (95% CI = 0.280-0.355) and 0.310 (95% CI = 0.274-0.346) for cases and controls, respectively (p = 0.773). Allele and genotype frequencies were unrelated with the age of onset of MS, gender, and clinical course of MS. In addition, haplotype analyses did not reveal any putative risk related to haplotypes. Conclusions: These results suggest that LINGO1 rs9652490 and rs11856808 polymorphisms are not related with risk for MS. This study adds to other published evidence indicating that, to date, the LINGO1 SNPs studied here could be useful risk biomarkers of developing essential tremor, but not other movement disorders.
    Electronic ISSN: 1471-2377
    Topics: Medicine
    Published by BioMed Central
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  • 6
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    Nature Publishing Group (NPG)
    Publication Date: 2013-04-26
    Description: Bmf upregulation through the AMP-activated protein kinase pathway may protect the brain from seizure-induced cell death Cell Death and Disease 4, e606 (April 2013). doi:10.1038/cddis.2013.136 Authors: C Moran, A Sanz-Rodriguez, A Jimenez-Pacheco, J Martinez-Villareal, R C McKiernan, E M Jimenez-Mateos, C Mooney, I Woods, J H M Prehn, D C Henshall & T Engel
    Keywords: temporal lobe epilepsyBH3-only proteinsapoptosisneuronsstatus epilepticus
    Electronic ISSN: 2041-4889
    Topics: Biology , Medicine
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  • 7
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    Chemistry Central
    Publication Date: 2013-02-01
    Description: Background: The proton at position 5 of imidazo[1,2-a]pyridines substituted with an angular electron withdrawing group (EWG) at position 3, shows an unusual downfield chemical shift, which is usually explained in terms of a peri effect. However usage of this term is sometimes confusing. In this investigation, it is proposed that the aforementioned shift is in fact a combination of several factors: Anisotropy, long-distance mesomerism and an attractive intramolecular interaction of the electrostatic hydrogen bond type. Results: Theoretical calculations were performed aimed to obtain evidence of the existence of an intramolecular non-bonding interaction between H-5 and the oxygen atom of the EWG. Results derived from conformational and vibrational analysis at the DFT B3LYP/6-311++G(d,p) level of theory, the determination of Bond Critical Points derived from AIM theory, and the measurement of some geometrical parameters, support the hypothesis that the higher stability of the prevailing conformation in these molecules (that in which the oxygen of the EWG is oriented towards H-5) has its origin in an intramolecular interaction, Conclusion: Computational calculations predicted correctly the conformational preferences in angular 3-pi-EWG-substituted imidazo[1,2-a]pyridines. The existence of an electrostatic hydrogen bond between H-5 and the oxygen atom of the pi-EWG was supported by several parameters, including X-ray crystallography. The existence of such structural array evidently impacts the H-5 chemical shift.
    Electronic ISSN: 1752-153X
    Topics: Chemistry and Pharmacology
    Published by Chemistry Central
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  • 8
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    MDPI Publishing
    In: Sensors
    Publication Date: 2013-11-21
    Description: In this paper we present a complete spike-based architecture: from a Dynamic Vision Sensor (retina) to a stereo head robotic platform. The aim of this research is to reproduce intended movements performed by humans taking into account as many features as possible from the biological point of view. This paper fills the gap between current spike silicon sensors and robotic actuators by applying a spike processing strategy to the data flows in real time. The architecture is divided into layers: the retina, visual information processing, the trajectory generator layer which uses a neuroinspired algorithm (SVITE) that can be replicated into as many times as DoF the robot has; and finally the actuation layer to supply the spikes to the robot (using PFM). All the layers do their tasks in a spike-processing mode, and they communicate each other through the neuro-inspired AER protocol. The open-loop controller is implemented on FPGA using AER interfaces developed by RTC Lab. Experimental results reveal the viability of this spike-based controller. Two main advantages are: low hardware resources (2% of a Xilinx Spartan 6) and power requirements (3.4 W) to control a robot with a high number of DoF (up to 100 for a Xilinx Spartan 6). It also evidences the suitable use of AER as a communication protocol between processing and actuation.
    Electronic ISSN: 1424-8220
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Published by MDPI Publishing
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  • 9
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    Hindawi
    Publication Date: 2013-11-22
    Description: We present and compare two short-term statistical forecasting models for hourly average electric power production forecasts of photovoltaic (PV) plants: the analytical PV power forecasting model (APVF) and the multiplayer perceptron PV forecasting model (MPVF). Both models use forecasts from numerical weather prediction (NWP) tools at the location of the PV plant as well as the past recorded values of PV hourly electric power production. The APVF model consists of an original modeling for adjusting irradiation data of clear sky by an irradiation attenuation index, combined with a PV power production attenuation index. The MPVF model consists of an artificial neural network based model (selected among a large set of ANN optimized with genetic algorithms, GAs). The two models use forecasts from the same NWP tool as inputs. The APVF and MPVF models have been applied to a real-life case study of a grid-connected PV plant using the same data. Despite the fact that both models are quite different, they achieve very similar results, with forecast horizons covering all the daylight hours of the following day, which give a good perspective of their applicability for PV electric production sale bids to electricity markets.
    Print ISSN: 1024-123X
    Electronic ISSN: 1563-5147
    Topics: Mathematics , Technology
    Published by Hindawi
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  • 10
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    Nature Publishing Group (NPG)
    Publication Date: 2014-02-27
    Description: We aimed to characterize microbiota of the gastric mucosa as it progress to intestinal type of cancer. Study included five patients each of non-atrophic gastritis (NAG), intestinal metaplasia (IM) and intestinal-type gastric cancer (GC). Gastric tissue was obtained and DNA extracted for microbiota analyses using the microarray G3 PhyloChip. Bacterial diversity ranged from 8 to 57, and steadily decreased from NAG to IM to GC (p = 0.004). A significant microbiota difference was observed between NAG and GC based on Unifrac-presence/absence and weighted-Unifrac-abundance metrics of 283 taxa (p 〈 0.05). HC-AN analyses based on presence/absence of 238 taxa revealed that GC and NAG grouped apart, whereas IM overlapped with both. An ordinated analyses based on weighted-Unifrac distance given abundance of 44 taxa showing significance across categories revealed significant microbiota separation between NAG and GC. This study is the first to show a gradual shift in gastric microbiota profile from NAG to IM to GC. Scientific Reports 4 doi: 10.1038/srep04202
    Electronic ISSN: 2045-2322
    Topics: Natural Sciences in General
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