1,296 research outputs found
Leaders' sustainability competences and small and medium‐sized enterprises outcomes: the role of social entrepreneurial orientation
Financiado para publicación en acceso aberto: Universidade de Vigo/CISUGThe market for socially conscious products and services has grown exponentially in the last years. Consequently, adding social value is among the great challenges that companies have to face nowadays. In view of this, companies need leaders with a set of specific skills that prepares them to act and compete in this new environment. This is especially true for small and medium-sized enterprises (SMEs), which are even more dependent on their leaders' competences. The aim of this article is to analyse the influence of leaders' sustainability competences on the social entrepreneurial orientation of SMEs of the tourism sector, as well as the influence of this strategy on the firm's performance. The methodology used to validate the measurement scales is exploratory and confirmatory factor analysis and the structural equation modelling technique is applied to analyse the causal relationships proposed in the model. The results show that sustainability competences positively affect social entrepreneurial orientation; specifically, the social risk-taking and proactivity competence has a positive influence on the economic and social performance of SMEs, and in particular, on their green innovation performance. These results highlight the key role that leaders' competences have in SMEs' social orientation and thus, the importance of training in competences for sustainable development
Relationship between damage and mortality in juvenile-onset systemic lupus erythematosus: Cluster analyses in a large cohort from the Spanish Society of Rheumatology Lupus Registry (RELESSER)
Objectives: To identify patterns (clusters) of damage manifestation within a large cohort of juvenile SLE (jSLE) patients and evaluate their possible association with mortality.
Methods: This is a multicentre, descriptive, cross-sectional study of a cohort of 345 jSLE patients from the Spanish Society of Rheumatology Lupus Registry. Organ damage was ascertained using the Systemic Lupus International Collaborating Clinics Damage Index. Using cluster analysis, groups of patients with similar patterns of damage manifestation were identified and compared.
Results: Mean age (years) ± S.D. at diagnosis was 14.2 ± 2.89; 88.7% were female and 93.4% were Caucasian. Mean SLICC/ACR DI ± S.D. was 1.27 ± 1.63. A total of 12 (3.5%) patients died. Three damage clusters were identified: Cluster 1 (72.7% of patients) presented a lower number of individuals with damage (22.3% vs. 100% in Clusters 2 and 3, P < 0.001); Cluster 2 (14.5% of patients) was characterized by renal damage in 60% of patients, significantly more than Clusters 1 and 3 (P < 0.001), in addition to increased more ocular, cardiovascular and gonadal damage; Cluster 3 (12.7%) was the only group with musculoskeletal damage (100%), significantly higher than in Clusters 1 and 2 (P < 0.001). The overall mortality rate in Cluster 2 was 2.2 times higher than that in Cluster 3 and 5 times higher than that in Cluster 1 (P < 0.017 for both comparisons).
Conclusions: In a large cohort of jSLE patients, renal and musculoskeletal damage manifestations were the two dominant forms of damage by which patients were sorted into clinically meaningful clusters. We found two clusters of jSLE with important clinical damage that were associated with higher rates of mortality, especially for the cluster of patients with predominant renal damage. Physicians should be particularly vigilant to the early prevention of damage in this subset of jSLE patients with kidney involvement
VOLUMEN 25, NÚMERO 40 (2003)
TERMOCRONOLOGÍA K-Ar EN ILLITAS: ASPECTOS METODOLÓGICOS. Mantilla Figueroa, L. C.CINÉTICA DE LA NUCLEACIÓN Y EL CRECIMIENTO DEL GRANATE EN LAS ROCAS METAPELÍTICAS DE LA FORMACIÓN SILGARÁ, REGIÓN SUROCCIDENTAL DEL MACIZO DE SANTANDER. Ríos Reyes, C., Gélvez Llanes, J., Márquez Romero, R. y Castellanos Alarcón, O.INTRODUCCIÓN A LA GEOLOGÍA DEL SECTOR VÉLEZ–BOLÍVAR–GUAVATÁ (DPTO. DE SANTANDER, COLOMBIA) Y SU IMPORTANCIA PARA LA EXPLORACIÓN DE DEPÓSITOSHIDROTERMALES. Mantilla Figueroa, L. C.; Cruz G. L. E.; Colegial G. J. D.RECOGNITION OF ANCIENT SHOREFACE DEPOSITS. FACIES, FACIES SUCESSIONS, AND ASSOCIATIONS. AN EXAMPLE FROM THE CRETACEOUS GALLUP CLASTIC WEDGE, NEW MÉXICO. Álvarez Bastos, MNUEVAS EVIDENCIAS ACERCA DE LA PRESENCIA DE UNA BANDA DE CIZALLAMIENTO EN LA SECUENCIA METAPELÍTICA DE LA FORMACIÓN SILGARÁ, SECTOR ARATOCA-PESCADERO (REGION SUROCCIDENTAL DEL MACIZO DE SANTANDER). Mantilla Figueroa, L. C.; Ríos Reyes, C. A.; Gélvez Llanes, J. R.; Márquez Romero, R. E.; Ordóñez Calderón, J. C.; Cepeda Espitia, S.LOS DELIRIOS: UN YACIMIENTO HIDROTERMAL DE ORO Y PLATA EN LA REGIÓN DE VETAS, SANTANDER (COLOMBIA). García Ramírez, C. A., Uribe Portilla, E.MINERALOGÍA, GEOQUÍMICA Y ALGUNOS ASPECTOS GENÉTICOS DE LA MINA EL DIAMANTE - NARIÑO (COLOMBIA). Molano, J.C. and Shimazaki, H.COMPARATIVE FLUID INCLUSION STUDIES OF THE SAN MARTÍN SKARN (MÉXICO) AND THE EPITHERMAL COMSTOCK LODE (USA) AND PACHUCA-REAL DEL MONTE (MÉXICO) DEPOSITS. Campos Álvarez, N. O
VOLUMEN 25, NÚMERO 40 (2003)
TERMOCRONOLOGÍA K-Ar EN ILLITAS: ASPECTOS METODOLÓGICOS. Mantilla Figueroa, L. C.CINÉTICA DE LA NUCLEACIÓN Y EL CRECIMIENTO DEL GRANATE EN LAS ROCAS METAPELÍTICAS DE LA FORMACIÓN SILGARÁ, REGIÓN SUROCCIDENTAL DEL MACIZO DE SANTANDER. Ríos Reyes, C., Gélvez Llanes, J., Márquez Romero, R. y Castellanos Alarcón, O.INTRODUCCIÓN A LA GEOLOGÍA DEL SECTOR VÉLEZ–BOLÍVAR–GUAVATÁ (DPTO. DE SANTANDER, COLOMBIA) Y SU IMPORTANCIA PARA LA EXPLORACIÓN DE DEPÓSITOSHIDROTERMALES. Mantilla Figueroa, L. C.; Cruz G. L. E.; Colegial G. J. D.RECOGNITION OF ANCIENT SHOREFACE DEPOSITS. FACIES, FACIES SUCESSIONS, AND ASSOCIATIONS. AN EXAMPLE FROM THE CRETACEOUS GALLUP CLASTIC WEDGE, NEW MÉXICO. Álvarez Bastos, MNUEVAS EVIDENCIAS ACERCA DE LA PRESENCIA DE UNA BANDA DE CIZALLAMIENTO EN LA SECUENCIA METAPELÍTICA DE LA FORMACIÓN SILGARÁ, SECTOR ARATOCA-PESCADERO (REGION SUROCCIDENTAL DEL MACIZO DE SANTANDER). Mantilla Figueroa, L. C.; Ríos Reyes, C. A.; Gélvez Llanes, J. R.; Márquez Romero, R. E.; Ordóñez Calderón, J. C.; Cepeda Espitia, S.LOS DELIRIOS: UN YACIMIENTO HIDROTERMAL DE ORO Y PLATA EN LA REGIÓN DE VETAS, SANTANDER (COLOMBIA). García Ramírez, C. A., Uribe Portilla, E.MINERALOGÍA, GEOQUÍMICA Y ALGUNOS ASPECTOS GENÉTICOS DE LA MINA EL DIAMANTE - NARIÑO (COLOMBIA). Molano, J.C. and Shimazaki, H.COMPARATIVE FLUID INCLUSION STUDIES OF THE SAN MARTÍN SKARN (MÉXICO) AND THE EPITHERMAL COMSTOCK LODE (USA) AND PACHUCA-REAL DEL MONTE (MÉXICO) DEPOSITS. Campos Álvarez, N. O
VOLUMEN 22, NÚMERO 37 (2000)
ANÁLISIS DE VARIABLES MORFOMÉTRICAS DE toxaster roulini agassiz (Echinoides: toxasteriidae) DE LA FORMACIÓN ROSA BLANCA, MUNICIPIO DE ZAPATOCA (SANTANDER, COLOMBIA). Cruz Guevara, L. E.; Jerez Jaimes, J. H., Narváez Parra, E. X.; Franco Blanco, R. A.COMPOSICIÓN QUÍMICA Y MINERALOGÍA DE LAS BIOTITAS METAMÓRFICAS DEL SECTOR CENTRAL DEL MACIZO DE SANTANDER, COLOMBIA. García Ramírez, C. A.; Campos Álvarez, N. O.BRECHAS DE ATRICIÓN Y MINERALIZACIONES AURÍFERAS EN LAS MINAS DE MIRAFLORES (QUINCHÍA, RISARALDA) Y SU RELACIÓN CON UN CUERPO TIPO “BRECHA - PIPE”. Carrillo Lombana, V. M.CRITERIOS PARA LA CLASIFICACIÓN Y DESCRIPCIÓN DE MOVIMIENTOS EN MASA. Vargas Cuervo, G.ANOMALÍAS GEOBOTÁNICAS ESPECTRALES ASOCIADAS CON LOS CAMBIOS EN LITOLOGÍA: SU USO PARA LA CARTOGRAFÍA GEOLÓGICA DE ROCAS ULTRABÁSICAS, EN TERRENOS TOTALMENTE VEGETADOS DE LA COSTA PACÍFICA COLOMBIANA. Villegas, V. H
VOLUMEN 22, NÚMERO 37 (2000)
ANÁLISIS DE VARIABLES MORFOMÉTRICAS DE toxaster roulini agassiz (Echinoides: toxasteriidae) DE LA FORMACIÓN ROSA BLANCA, MUNICIPIO DE ZAPATOCA (SANTANDER, COLOMBIA). Cruz Guevara, L. E.; Jerez Jaimes, J. H., Narváez Parra, E. X.; Franco Blanco, R. A.COMPOSICIÓN QUÍMICA Y MINERALOGÍA DE LAS BIOTITAS METAMÓRFICAS DEL SECTOR CENTRAL DEL MACIZO DE SANTANDER, COLOMBIA. García Ramírez, C. A.; Campos Álvarez, N. O.BRECHAS DE ATRICIÓN Y MINERALIZACIONES AURÍFERAS EN LAS MINAS DE MIRAFLORES (QUINCHÍA, RISARALDA) Y SU RELACIÓN CON UN CUERPO TIPO “BRECHA - PIPE”. Carrillo Lombana, V. M.CRITERIOS PARA LA CLASIFICACIÓN Y DESCRIPCIÓN DE MOVIMIENTOS EN MASA. Vargas Cuervo, G.ANOMALÍAS GEOBOTÁNICAS ESPECTRALES ASOCIADAS CON LOS CAMBIOS EN LITOLOGÍA: SU USO PARA LA CARTOGRAFÍA GEOLÓGICA DE ROCAS ULTRABÁSICAS, EN TERRENOS TOTALMENTE VEGETADOS DE LA COSTA PACÍFICA COLOMBIANA. Villegas, V. H
VAMOS: a Pathfinder for the HAWC Gamma-Ray Observatory
VAMOS was a prototype detector built in 2011 at an altitude of 4100m a.s.l.
in the state of Puebla, Mexico. The aim of VAMOS was to finalize the design,
construction techniques and data acquisition system of the HAWC observatory.
HAWC is an air-shower array currently under construction at the same site of
VAMOS with the purpose to study the TeV sky. The VAMOS setup included six water
Cherenkov detectors and two different data acquisition systems. It was in
operation between October 2011 and May 2012 with an average live time of 30%.
Besides the scientific verification purposes, the eight months of data were
used to obtain the results presented in this paper: the detector response to
the Forbush decrease of March 2012, and the analysis of possible emission, at
energies above 30 GeV, for long gamma-ray bursts GRB111016B and GRB120328B.Comment: Accepted for pubblication in Astroparticle Physics Journal (20 pages,
10 figures). Corresponding authors: A.Marinelli and D.Zaboro
Constraints on the χ_(c1) versus χ_(c2) polarizations in proton-proton collisions at √s = 8 TeV
The polarizations of promptly produced χ_(c1) and χ_(c2) mesons are studied using data collected by the CMS experiment at the LHC, in proton-proton collisions at √s=8 TeV. The χ_c states are reconstructed via their radiative decays χ_c → J/ψγ, with the photons being measured through conversions to e⁺e⁻, which allows the two states to be well resolved. The polarizations are measured in the helicity frame, through the analysis of the χ_(c2) to χ_(c1) yield ratio as a function of the polar or azimuthal angle of the positive muon emitted in the J/ψ → μ⁺μ⁻ decay, in three bins of J/ψ transverse momentum. While no differences are seen between the two states in terms of azimuthal decay angle distributions, they are observed to have significantly different polar anisotropies. The measurement favors a scenario where at least one of the two states is strongly polarized along the helicity quantization axis, in agreement with nonrelativistic quantum chromodynamics predictions. This is the first measurement of significantly polarized quarkonia produced at high transverse momentum
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