Diferencias en la evolución del paisaje entre dos municipios Prepirenaicos: Alquézar y Valle de Lierp, en la segunda mitad del siglo XX

Rapid socio-economical global changes happened during the second half of the 20th century, have radically altered territorial management in rural areas of the Mediterranean mountains, specifically, in the Pre Pyrenees (Huesca). Population decrease in young and economically active members, plus the change of the productive model entailed a land use transformation and subsequent landscape changes. Although the general model of landscape change is based on the decrease of human pressure on this territory, we should also take into account local characteristics related to biophysical and historical features. The comparison between two Pre Pyrenean municipalities: Alquézar and Valle de Lierp, shows these local differences, contextualized by the analyses of the Pre Pyrenean landscape composition. Consequently, a retrospective and multiscale study focused on the two sample municipalities –considering those as an operational management unit–, has been done. We have assessed landscape composition, configuration and structure on those units through component analyses, transition models and landscape indices. The methodological development of this work has been simplified by the use of GIS (ARC GIS 9) and FRAGSTAT, software of landscape ecology metrics.Los rápidos cambios socioeconómicos globales ocurridos durante la segunda mitad del siglo XX transformaron radicalmente el sistema de gestión territorial en el ámbito rural de la montaña mediterránea y, concretamente, en el Prepirineo oscense. La disminución de la población joven y activa económicamente, así como la transformación del modelo productivo, conllevaron un cambio en la estrategia tradicional de aprovechamiento y ocupaciones del suelo, que ha dejado su impronta en el paisaje. No obstante, las particularidades locales biofísicas e históricas condicionan la aparición de matizaciones al modelo de transformación general del paisaje, basado fundamentalmente en la disminución de la presión humana sobre el territorio. El contraste entre dos municipios en el ámbito del Prepirineo oscense (Alquézar y Valle de Lierp) ilustra estas variaciones, contextualizadas por el análisis de la composición del paisaje del Prepirineo oscense. Se realiza, por lo tanto, un estudio retrospectivo y multiescala centrado en la unidad operacional que constituye el municipio, donde se evalúa la composición, configuración y estructura del paisaje a través del análisis de sus componentes, de modelos de transición y de la aplicación de índices de paisaje. El desarrollo metodológico de este trabajo se ha simplificado gracias al empleo de SIG (ARC GIS.9) y FRAGSTAT, un programa de índices de ecología del paisaje

Las claves de éxito y las mejores prácticas de los sistemas de participación del personal

El objetivo de este trabajo es conocer la importancia que las empresas españolas que cuentan con sistemas de participación del personal como soporte a la implantación de la mejora continua otorgan a los diferentes factores clave para el éxito de estos sistemas. Dichos factores clave son el resultado de una labor de recopilación y armonización de las propuestas de diferentes autores en las últimas dos décadas. A continuación, en una muestra de 40 empresas españolas con gran grado de madurez en sus sistemas de participación, se evalúa el nivel de desarrollo de una serie de aspectos relacionados con los factores clave identificados, con la intención de comparar si la implantación o despliegue de los diferentes factores es acorde con el orden de importancia concedido. Finalmente, se ofrece un conjunto de mejores prácticas de las empresas de la muestra, fruto de su experiencia y buen hacer en materia de sistemas de participación a lo largo de los años, con el objetivo de que dichas prácticas puedan servir de referencia para aquellas otras compañías que deseen iniciar o profundizar en la implantación de la mejora continua, contando con el necesario apoyo de los sistemas de participación del personal. --- The aim of this work is to know the importance of key factors for the success of employee participation systems supporting continuous improvement, as evaluated by Spanish companies with such systems implanted. Said key factors are the result of a compilation of the proposals from different authors in the last two decades. The work was carried out in a sample of 40 Spanish companies, all with high maturity in their employee participation systems. The level of development and deployment of a series of implantation aspects is studied, in order to find out relations with the importance of those key factors. Finally, the paper offers some company best practices, as a kind of reference for those companies that wish to initiate or improve their employee participation systems as a vehicle for continuous improvement

Sostenibilidad y mejora logística. Un caso práctico

[ESP] Las empresas, en el contexto competitivo actual, deben enfrentarse a los desafíos de la innovación constante de nuevos productos, disminución de los ciclos de vida de los productos, la proliferación de productos, la demanda de precios cada vez más bajos y estándares de calidad y servicio cada vez más elevados. Esto ha ocurrido en mercados que pueden caracterizarse como cada vez más globales, turbulentos y volátiles y ha obligado a muchas organizaciones a buscar como fuente de ventajas competitivas, una mejor gestión de la cadena de suministro (“supply chain management”, en adelante SCM), incluyendo la posible deslocalización de procesos y actividades a países emergentes o de bajo coste. En esta misma línea, está bastante extendida la visión de que la competencia en los mercados actuales ya no sigue un modelo de compañía contra compañía, sino que la competencia es entre cadenas de suministro. Ahora bien, la búsqueda sistemática de alternativas más eficientes para diseñar y gestionar la cadena suministros pueden basarse, tanto en el ámbito de la reducción de costes (enfoque “lean”) como en el ámbito de la mejora de la flexibilidad (enfoque “ágil”). Tradicionalmente, ambos enfoques se han contrapuesto, si bien, más que conceptos excluyentes, ambos deben complementarse en un entorno cada vez más competitivo, en el que no es suficiente ofrecer productos que, o bien sólo sean baratos, que sólo tengan calidad o que sólo ofrezcan un buen plazo de entrega

High triglycerides and low HDL-c lipid profile in rheumatoid arthritis: a potential link among inflammation, oxidative status and dysfunctional HDL

Background The interactions between inflammation and lipid profile in rheumatoid arthritis (RA) are poorly understood. The lipid profile study in RA has been biased toward lipoprotein levels, whereas those of triglycerides (TGs) and lipoprotein functionality have been underestimated. Objectives Since recent findings suggest a role for TG and TG-rich lipoproteins (TRL) on inflammation, we aimed to evaluate a combined lipid profile characterized by high TG and low high-density lipoprotein cholesterol levels (TGhighHDLlow) in RA. Methods Lipid profiles were analyzed in 113 RA patients, 113 healthy controls, and 27 dyslipemic subjects. Levels of inflammatory mediators, paraoxonase-1 (PON1) activity, and total antioxidant capacity were quantified in serum. PON1-rs662 status was evaluated by real-time polymerase chain reaction. Results The TGhighHDLlow profile was detected in 29/113 RA patients. Although no differences in prevalence compared with healthy controls or dyslipemic subjects were observed, this profile was associated with increased tumor necrosis factor ? (P = .004), monocyte chemotactic protein (P = .004), interferon-gamma?inducible protein-10 (P = .018), and leptin (P < .001) serum levels in RA, where decreased PON1 activity and total antioxidant capacity were found. TGhighHDLlow prevalence was lower among anti-TNF??treated patients (P = .004). When RA patients were stratified by PON1-rs662 status, these associations remained in the low-activity genotype (QQ). Finally, a poor clinical response on TNF? blockade was related to an increasing prevalence of the TGhighHDLlow profile over treatment (P = .021) and higher TRL levels at baseline (P = .042). Conclusions The TGhighHDLlow profile is associated with systemic inflammation, decreased PON1 activity, and poor clinical outcome on TNF? blockade in RA, suggesting a role of TRL and HDL dysfunction as the missing link between inflammation and lipid profile.This work was supported by European Union FEDER funds, “Fondo de Investigación Sanitaria (FIS, PI12/00523 and PI16/00113; ISCIII, Spain) and SER/FER funds (Sociedad Española de Reumatología, FER043/2016). J.R.-C. is supported by a postdoctoral contract from the “Juan de la Cierva” program (FJCI-2015-23849; MINECO, Spain)

Age at first episode modulates diagnosis-related structural brain abnormalities in psychosis

Brain volume and thickness abnormalities have been reported in first-episode psychosis (FEP). However, it is unclear if and how they are modulated by brain developmental stage (and, therefore, by age at FEP as a proxy). This is a multicenter cross-sectional case-control brain magnetic resonance imaging (MRI) study. Patients with FEP (n = 196), 65.3% males, with a wide age at FEP span (12–35 y), and healthy controls (HC) (n = 157), matched for age, sex, and handedness, were scanned at 6 sites. Gray matter volume and thickness measurements were generated for several brain regions using FreeSurfer software. The nonlinear relationship between age at scan (a proxy for age at FEP in patients) and volume and thickness measurements was explored in patients with schizophrenia spectrum disorders (SSD), affective psychoses (AFP), and HC. Earlier SSD cases (ie, FEP before 15–20 y) showed significant volume and thickness deficits in frontal lobe, volume deficits in temporal lobe, and volume enlargements in ventricular system and basal ganglia. First-episode AFP patients had smaller cingulate cortex volume and thicker temporal cortex only at early age at FEP (before 18–20 y). The AFP group also had age-constant (12–35-y age span) volume enlargements in the frontal and parietal lobe. Our study suggests that age at first episode modulates the structural brain abnormalities found in FEP patients in a nonlinear and diagnosis-dependent manner. Future MRI studies should take these results into account when interpreting samples with different ages at onset and diagnosis

Role of PTPN22 and CSK gene polymorphisms as predictors of susceptibility and clinical heterogeneity in patients with Henoch-Schönlein purpura (IgA vasculitis)

INTRODUCTION: To determine whether the PTPN22 (protein tyrosine phosphatase nonreceptor 22)/CSK (c-src tyrosine kinase) pathway is implicated in the susceptibility and clinical heterogeneity of Henoch-Schönlein purpura (HSP) in the largest series of Caucasian HSP patients ever assessed for genetic studies. METHODS: A set of 329 Spanish patients diagnosed with HSP fulfilling the American College of Rheumatology and the Michel et al. classification criteria and 515 sex and ethnically matched controls were recruited in this study. Two well-known CSK (CSK rs34933034 and CSK rs1378942) and two functional PTPN22 (PTPN22 rs2476601 (R620W) and PTPN22 rs33996649 (R263Q)) polymorphisms, previously associated with autoimmunity, were genotyped with TaqMan single nucleotide polymorphism (SNP) genotyping assays. RESULTS: No significant differences in the genotype and allele frequencies between HSP patients and controls were observed when the CSK rs34933034, CSK rs1378942, PTPN22 rs2476601 (R620W) and PTPN22 rs33996649 (R263Q) polymorphisms were analyzed independently. In keeping with this observation, no significant differences were found when we assessed these polymorphisms combined conforming haplotypes. In addition, there were no differences in the allele or genotype frequencies when HSP patients were stratified according the age at disease onset, sex, presence of arthralgia/arthritis, nephritis or gastrointestinal manifestations. CONCLUSIONS: Our results do not support association between PTPN22/CSK and HSP

Lack of Association between ABO, PPAP2B, ADAMST7, PIK3CG, and EDNRA and Carotid Intima-Media Thickness, Carotid Plaques, and Cardiovascular Disease in Patients with Rheumatoid Arthritis

Introduction. Rheumatoid arthritis (RA) is a polygenic disease associated with accelerated atherosclerosis and increased cardiovascular (CV) mortality. Recent studies have identified the ABO rs579459, PPAP2B rs17114036, and ADAMTS7 rs3825807 polymorphisms as genetic variants associated with coronary artery disease and the PIK3CG rs17398575 and EDNRA rs1878406 polymorphisms as the most significant signals related to the presence of carotid plaque in nonrheumatic Caucasian individuals. Accordingly, we evaluated the potential relationship between these 5 polymorphisms and subclinical atherosclerosis (assessed by carotid intima-media thickness (cIMT) and presence/absence of carotid plaques) and CV disease in RA. Material and Methods. 2140 Spanish RA patients were genotyped for the 5 polymorphisms by TaqMan assays. Subclinical atherosclerosis was evaluated in 620 of these patients by carotid ultrasonography technology. Results. No statistically significant differences were found when each polymorphism was assessed according to cIMT values and presence/absence of carotid plaques in RA, after adjusting the results for potential confounders. Moreover, no significant differences were obtained when RA patients were stratified according to the presence/absence of CV disease after adjusting for potential confounders. Conclusion. Our results do not confirm association between ABO rs579459, PPAP2B rs17114036, ADAMTS7 rs3825807, PIK3CG rs17398575, and EDNRA rs1878406 and subclinical atherosclerosis and CV disease in RA.European Union FEDER Funds and “Fondo de Investigación Sanitaria” (Grants PI06/0024, PS09/00748, and PI12/00060) from “Instituto de Salud Carlos III” (ISCIII, Health Ministry, Spain). It was also partially supported by RETICS Programs RD12/0009/0013 and RD12/0009/0004 (RIER) from “Instituto de Salud Carlos III” (ISCIII, Health Ministry, Spain) and in part by grants from the European IMI BTCure Program.Peer reviewe

Protective Role of the Interleukin 33 rs3939286 Gene Polymorphism in the Development of Subclinical Atherosclerosis in Rheumatoid Arthritis Patients

OBJECTIVES: To determine whether the interleukin-33 (IL-33)-interleukin-1 receptor like 1 (IL-1RL1) signaling pathway is implicated in the risk of subclinical atherosclerosis in patients with rheumatoid arthritis (RA). METHODS: A total of 576 Spanish RA patients from Northern Spain were genotyped for 6 well-known IL33-IL1RL1 polymorphisms (IL33 rs3939286, IL33 rs7025417, IL33 rs7044343, IL1RL1 rs2058660, IL1RL1 rs2310173 and IL1RL1 rs13015714) by TaqMan genotyping assay. The presence of subclinical atherosclerosis was determined by the assessment of carotid intima-media thickness (cIMT) by carotid ultrasound (US). RESULTS: RA patients carrying the TT genotype of the IL33 rs3939286 polymorphism had lower cIMT values than those homozygous for the CC genotype (mean ± standard deviation (SD): 0.71 ± 0.14 mm versus 0.76 ± 0.16 mm, respectively) while patients carrying the CT genotype had intermediate cIMT values (mean ± SD: 0.73 ± 0.17 mm). Moreover, RA patients carrying the mutant allele T of the IL33 rs3939286 polymorphism exhibited significantly lower cIMT values than those carrying the wild allele C (mean ± SD: 0.72 ± 0.16 mm versus 0.75 ± 0.18 mm respectively; p = 0.04). The association of both genotype and allele frequencies of IL33 rs3939286 and cIMT levels remained statistically significant after adjustment for sex, age at the time of US study, follow-up and center (p = 0.006 and p = 0.0023, respectively), evidencing that the potential effect conferred by IL33 rs3939286 may be independent of confounder factors. No association with other IL33-IL1RL1 genetic variants was observed. CONCLUSIONS: In conclusion, our results may suggest a potential protective effect of the IL33 rs3939286 allele T in the risk of subclinical atherosclerosis in patients with RA

Osteoprotegerin CGA Haplotype Protection against Cerebrovascular Complications in Anti-CCP Negative Patients with Rheumatoid Arthritis

INTRODUCTION: Rheumatoid arthritis is an inflammatory disease with high incidence of cardiovascular disease due to accelerated atherosclerosis. Osteoprotegerin (OPG) has been associated with increased risk of atherosclerotic disease in the general population. Several polymorphisms in the OPG gene with functional effects on cardiovascular disease in non-rheumatic individuals have been described. Therefore, we aimed to analyze the effect of three of these functional OPG polymorphisms on the risk of cardiovascular disease in a large and well-characterized cohort of Spanish patients with rheumatoid arthritis. METHODS: Three OPG gene variants (rs3134063, rs2073618 and rs3134069) were genotyped by TaqMan assays in 2027 Spanish patients with rheumatoid arthritis. Anti-cyclic citrullinated peptide (anti-CCP) antibody testing was positive in 997 of 1714 tested. Also, 18.3% of the whole series had experienced cardiovascular events, including 5.4% with cerebrovascular accidents. The relationship between OPG variants and cardiovascular events was assessed using Cox regression. RESULTS: No association between OPG gene variants and cardiovascular disease was observed in the whole group of rheumatoid arthritis patients or in anti-CCP positive patients. Nevertheless, a protective effect of CGA haplotype on the risk of cardiovascular disease in general, and specifically in the risk of cerebrovascular complications after adjusting for sex, age at disease diagnosis and traditional cardiovascular risk factors was disclosed in anti-CCP negative patients (HR = 0.54; 95%CI: 0.31-0.95; p = 0.032 and HR = 0.17; 95%CI: 0.04-0.78; p = 0.022, respectively). CONCLUSION: Our results indicate a protective effect of the OPG CGA haplotype on cardiovascular risk, mainly due to a protective effect against cerebrovascular events in anti-CCP negative rheumatoid arthritis patients

Lack of association between ABO, PPAP2B, ADAMST7, PIK3CG, and EDNRA and carotid intima-media thickness, carotid plaques, and cardiovascular disease in patients with rheumatoid arthritis

Introduction. Rheumatoid arthritis (RA) is a polygenic disease associated with accelerated atherosclerosis and increased cardiovascular (CV) mortality. Recent studies have identified the ABO rs579459, PPAP2B rs17114036, and ADAMTS7 rs3825807 polymorphisms as genetic variants associated with coronary artery disease and the PIK3CG rs17398575 and EDNRA rs1878406 polymorphisms as the most significant signals related to the presence of carotid plaque in nonrheumatic Caucasian individuals. Accordingly, we evaluated the potential relationship between these 5 polymorphisms and subclinical atherosclerosis (assessed by carotid intima-media thickness (cIMT) and presence/absence of carotid plaques) and CV disease in RA. Material and Methods. 2140 Spanish RA patients were genotyped for the 5 polymorphisms by TaqMan assays. Subclinical atherosclerosis was evaluated in 620 of these patients by carotid ultrasonography technology. Results. No statistically significant differences were found when each polymorphism was assessed according to cIMT values and presence/absence of carotid plaques in RA, after adjusting the results for potential confounders. Moreover, no significant differences were obtained when RA patients were stratified according to the presence/absence of CV disease after adjusting for potential confounders. Conclusion. Our results do not confirm association between ABO rs579459, PPAP2B rs17114036, ADAMTS7 rs3825807, PIK3CG rs17398575, and EDNRA rs1878406 and subclinical atherosclerosis and CV disease in RA