105,211 research outputs found
Attirer les talents : Quels sont les leviers déterminant le choix d’un employeur aujourd’hui?
No full textCe rapport de recherche a été réalisé dans le cadre du labor-H, chaire universitaire en Management Humain et nouvelles formes d’organisation de l’UCLouvain, dirigée par le Prof. Laurent Taskin. Le labor- H est le laboratoire de recherche et d’innovation collaboratif dans le domaine du Management Humain de l'Université catholique de Louvain (LRIM et ESPO/EST)
Digitalisation et culture managériale. Quelles sont les évolutions en termes de culture managériale dans le contexte de digitalisation ?
No full textCe rapport de recherche a été réalisé dans le cadre du labor-H, chaire universitaire en Management Humain et nouvelles formes d’organisation de l’UCLouvain, dirigée par le Prof. Laurent Taskin. Le labor-H est le laboratoire de recherche et d’innovation collaboratif dans le domaine du Management Humain de l'Université catholique de Louvain (LRIM et ESPO/EST)
Adsorptive removal of ascertained and suspected endocrine disruptors from aqueous solution using plant-derived materials
No full textThe present study deals with the use of low-cost plant-derived materials, namely a biochar, spent coffee grounds, spent tea leaves, and a compost humic acid, for the adsorptive removal from water of two estrogens, 4-tert-octylphenol (OP) and 17-β-estradiol (E2), and two pesticides, carbaryl and fenuron, each spiked at a concentration of 1 mg L−1. Kinetics and adsorption isotherms have been performed using a batch equilibrium method to measure the sorption capacities of the adsorbents towards the four molecules. Adsorption constants were calculated using the linear, Freundlich, and Langmuir models. Kinetics data obtained evidenced a rapid adsorption of each compound onto both biochar and coffee grounds with the attainment of a steady-state equilibrium in less than 4 h. Significant differences among the adsorbents and the compounds were found regarding the model and the extent of adsorption. In general, the estrogens were adsorbed more quickly and in greater amounts than the less hydrophobic pesticides, following the order: OP > E2 > carbaryl > fenuron. The ranges of Freundlich constants obtained for OP, E2, carbaryl, and fenuron onto the sorbents were 5049–2253, 3385–206, 2491–79, and 822–24 L kg−1, respectively. The maximum values of constants were obtained for biochar, except for OP that was more adsorbed by spent coffee grounds. Adsorption kinetic data followed a pseudo-second-order model, thus indicating the occurrence of chemical interactions between the compounds and the substrates. The remarkable sorption capacities of all adsorbents towards the four molecules suggest the valuable exploitation of these materials for decontamination purposes, such as the treatment of wastewater before a feasible recycle in soil
Body, movement and new technologies for a quality teaching-learning for disabled students at University: a project hypothesis
No full textSoutenir les managers. Quel soutien au bien-être des managers de proximité dans un contexte de désaffection du métier ?
No full textCe rapport de recherche a été réalisé dans le cadre du labor-H, chaire universitaire en Management Humain et nouvelles formes d’organisation de l’UCLouvain, dirigée par le Prof. Laurent Taskin. Le labor-H est le laboratoire de recherche et d’innovation collaboratif dans le domaine du Management Humain de l'Université catholique de Louvain (LRIM et ESPO/EST)
Accompagner les fins de carrière. Quel accompagnement et quelles pratiques pour le maintien au travail et l'inclusion des collaborateurs en fin de carrière ?
No full textCe rapport de recherche a été réalisé dans le cadre du labor-H, chaire universitaire en Management Humain et nouvelles formes d’organisation de l’UCLouvain, dirigée par le Prof. Laurent Taskin. Le labor-H est le laboratoire de recherche et d’innovation collaboratif dans le domaine du Management Humain de l'Université catholique de Louvain (LRIM et ESPO/EST)
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
Impact of type and dose of biochar and hydrochar on growth response of phytopathogenic and antagonistic soil-resident fungi
No full textBiochar (BC) and hydrochar (HC) are solid
by-products obtained through, respectively, pyrolysis
and hydrothermal carbonization of biomass.
Both materials are used as organic amendments
allowing carbon sequestration in soil. Two BCs,
from spruce pellets (BCSP) and grapevine pruning
residues (BCGV), and two HCs, from urban pruning
residues (HCUP) and the organic fraction of solid
urban waste (HCSU), were tested at concentrations
of 0.2 and 1% (w/v) on soil-resident fungi. The
higher dose of BC samples significantly reduced
mycelial growth of the phytopathogens Rhizoctonia
solani and Botrytis cinerea (up to 53% for BCGV on
B. cinerea after 24 h from inoculation, compared to
control), whereas, in general, the lower dose of both
BCs inhibited R. solani for the whole experiment
and B. cinerea only initially. HC samples evidenced
a general lower toxicity on the two pathogens than
BCs. In fact, only HCUP at both concentrations
reduced hyphal elongation of the sole B. cinerea for
the entire experimental time (up to of 38% for both
doses at 24 h from inoculation). All BC and HC
treatments at the lower concentration did not influence
or greatly stimulated the antagonists Trichoderma
harzianum and T. virens. Differently, the
higher dose of these materials caused some suppression
at the initial stage or at each sampling by
BCSP on T. harzianum and HCUP on T. virens. The
whole results obtained indicate a plant protective
activity of these materials with consequent less
need for fungicidal treatments
Static and free vibration of axially loaded functionally graded beams based on the first-order shear deformation theory
No full textThe first-order shear deformation beam theory for static and free vibration of axially loaded rectangular functionally graded beams is developed. In this theory, the improved transverse shear stiffness is derived from the in-plane stress and equilibrium equation and thus, associated shear correction factor is then obtained analytically. Equations of motion are derived from the Hamilton’s principle. Analytical solutions are presented for simply-supported functionally graded beams. The obtained results are compared with the existing solutions to verify the validity of the developed theory. Effects of the power-law index, material contrast and Poisson’s ratio on the displacements, natural frequencies, buckling loads and load–frequency curves as well as corresponding mode shapes are investigated
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
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