Low Dynamics, High Longevity and Persistence of Sessile Structural Species Dwelling on Mediterranean Coralligenous Outcrops

There is still limited understanding of the processes underlying benthic species dynamics in marine coastal habitats, which are of disproportionate importance in terms of productivity and biodiversity. The life-history traits of long-lived benthic species in these habitats are particularly poorly documented. In this study, we assessed decadal patterns of population dynamics for ten sponge and anthozoan species that play key structural roles in coralligenous outcrops (~25 m depth) in two areas of the NW Mediterranean Sea. This study was based on examination of a unique long-term photographic series, which allowed analysis of population dynamics over extensive spatial and time spans for the very first time. Specifically, 671 individuals were censused annually over periods of 25-, 15-, and 5-years. This long-term study quantitatively revealed a common life-history pattern among the ten studied species, despite the fact they present different growth forms. Low mortality rates (3.4% yr−1 for all species combined) and infrequent recruitment events (mean value of 3.1±0.5 SE recruits yr−1) provided only a very small fraction of the new colonies required to maintain population sizes. Overall, annual mortality and recruitment rates did not differ significantly among years; however, some species displayed important mortality events and recruitment pulses, indicating variability among species. Based on the growth rates of these 10 species, we projected their longevity and, obtained a mean estimated age of 25-200 years. Finally, the low to moderate turnover rates (mean value 0.80% yr−1) observed among the coralligenous species were in agreement with their low dynamics and persistence. These results offer solid baseline data and reveal that these habitats are among the most vulnerable to the current increases of anthropogenic disturbances.

Variability of the radius growth at 25 years old Pinus uncinata Miller ex Mirbel in the North-East Spanish Pyrenees

It has been studied the variability of stem radial growth in four radius orientations at the age of 25 years old trees. The species was Pinus uncinata. The sampling sites, located in the North East Spanish Pyrenees belong to different plant communities. An ANOVA analysis was performed in order to find out which factors, the radio orientation, plant community of the site and tree itself are significative or have some kind of influence on the tree radial growth.

25-years of biomonitoring in two mediterranean streams (Llobregat and Besos basins, NE Spain)

Biological water quality changes in two Mediterranean river basins from a network of 42 sampling sites assessed since 1979 are presented. In order to characterize the biological quality, the index FBILL, designed to characterize these rivers" quality using aquatic macroinvertebrates, is used. When comparing the data from recent years to older ones, only two headwater sites from the 42 had improved their water quality to good or very good conditions. In the middle or low river basin sites or even in headwater localities were river flow is reduced, the important investment to build up sewage water treatment systems and plants (more than 70 in 15 years) allowed for a small recovery from poor or very poor conditions to moderate water quality. Nevertheless still a significant number (25 %) of the localities remain in poor conditions. The evolution of the quality in several points of both basins shows how the main problems for the recovery of the biological quality is due to the water diverted for small hydraulic plants, the presence of saline pollution in the Llobregat River, and the insufficient water depuration. In the smaller rivers, and specially the Besòs the lack of dilution flows from the treatment plants is the main problem for water quality recovery.

Conflict, Peace and Security in Africa: an Assessment and New Questions After 50 Years of African Independence

Since the independence processes in the African continent, armed conflicts, peace and security have raised concern and attention both at the domestic level and at the international scale. In recent years, all aspects have undergone significant changes which have given rise to intense debate. The end of some historical conflicts has taken place in a context of slight decrease in the number of armed conflicts and the consolidation of post-conflict reconstruction processes. Moreover, African regional organizations have staged an increasingly more active internal shift in matters related to peace and security, encouraged by the idea of promoting “African solutions to African problems”. This new scenario, has been accompanied by new uncertainties at the security level and major challenges at the operational level, especially for the African Union. This article aims to ascertain the state of affairs on all these issues and raise some key questions to consider.

Post-adopció i resiliència: l'ajust psicosocial i vivència de l'adopció en infants adoptats internacionalment

Antecedents. Cada cop són més els nens i nenes adoptats internacionalment que creixen en la nostra societat, i el seu ajust psicosocial s’ha convertit en un assumpte d’especial interès i rellevància. Objectius. Estudiar l'ajust psicosocial i la vivència de l'adopció en els infants adoptats internacionalment. Els objectius específics són: 1) estudiar els nivells d’adaptació personal i social en nens i nenes adoptats/des internacionalment, en comparació amb els estàndards de la població normativa; 2) estudiar la vivència de l’adopció en nens i nenes adoptats internacionalment i la percepció que mares i pares en tenen al respecte; 3) analitzar el paper de las variables estrés i estratègies d’afrontament en l’ajust psicosocial dels infants adoptats. Material i Mètode. La mostra està formada per 103 infants adoptats a l’estranger, d’entre 8 i 12 anys, i els seus respectius pares i mares. Els participants completaren les següents proves: BASC (Behavior Assessment System for Children (BASC; Reynolds & Kamphaus, 1992), Qüestionari de punts forts i febles (SDQ; Goodman, 1997, 1999), Escala de la vivència adoptiva (Reinoso, 2008), Kidcope (Spirito, Stara y Williams, 1988). En realitzen anàlisis estadístics de tipus descriptiu, comparatiu, correlacional i exploratori. Resultats. La majoria dels menors adoptats internacionalment presenta bons nivells de funcionament, si bé un 25% d’ells presenta dificultats adaptatives bàsiques. En general s’observa un elevat nivell de convergència en la visió de l’experiència adoptiva entre nens/es i mares i pares. Els infants puntuen més alt en identitat cultural i més baix en discriminació percebuda que els seus pares/mares. Principalment esmenten problemes interpersonals de relació i de salut, malalties i accidents i utilitzen predominantment estratègies d’afrontament aproximatives. Els estressors vinculats amb l’experiència adoptiva són escassament mencionats. Conclusions. L’especificitat de la condició adoptiva requereix d’intervencions ajustades a la realitat d’aquests les necessitats d’aquests nens i les seves families.

Renograma 99mTc Post-Captoprilen la valoración de la hipertensión vásculo-renal en pacientes portadores de injerto renal.

Objectiu: Descripció de la metodologia del renograma isotòpic basal/postcaptopril (RIB/P) en pacients portadors de empelt renal amb sospita de malaltia vasculo-renal (MVR). Material i mètodes: Es va realitzar en 44 pacients trasplantats renals un renograma basal i 48 hores després un renograma postcaptopril administrant 25 mg de captopril v.o i realitzant una adquisició 30 minuts després. Resultats: Dels 44 estudis 6 van ser positius, constatant-se MVR per angio-TC i 38 van ser negatius tractats posteriorment amb IECAs o ARAII i no van mostrar alteracions significatives del funcionalisme renal. Conclusions: El RIB/P es una eina útil para determinar MVR en pacients amb empelt renal i hipertensió arterial.

The EU ‘2020 Energy Initiative’: The post-Lisbon pattern of change in EU energy policy

El novembre de 2010, la Comissió Europea ha finalment donat a conèixer la seva "Energia 2020 Comunicació", un document estratègic en el marc més ampli del programa "Europa 2020". Una estratègia per al desenvolupament sostenible intel · ligent, i creixement inclusiu posa les bases d'un nou enfocament a la política d'energia a la UE. En el marc d'Europa 2020, la Iniciativa d'Energia recopila els resultats que ja s'han obtingut a través de la Estratègia de Lisboa 2000-2010, s'identifiquen les deficiències del passat i i introdueix nous objectius ambiciosos per a la UE en matèria de política energètica.

Societat de la vigilància 25 anys desprès de 1984 a Catalunya i UK

Desprès de un any de treball, el grup ha detectat que la relació entre protecció de dades i vídeo vigilància constitueix el nus central de la preocupació internacional en torn a la anomenada “Societat de la Vigilància”. Paral•lelament, ha constatat que a l’Estat Espanyol hi ha pocs grups que treballin aquesta cruïlla temàtica, raó per la qual la representació ibèrica en els grups de recerca europeus era minsa. Per aquestes raons, el grup ha dedicat els esforços a: 1) desenvolupar un marc teòric que faci possible entendre l’entramat legislatiu, sociològic i fenomènic de la video vigilància a Catalunya, a l’estat Espanyol, i a Europa. 2) dur a terme accions de recerca empírica qualitativa i quantitativa i relacionar-les amb aquest marc teòric. 3) crear vincles de col•laboració amb investigadors catalans, espanyols, anglesos i fins i tot europeus, començant una etapa d’integració a les xarxes de recerca en funcionament o en estat latent. En funció de les característiques de la convocatòria i del tema original que ens ocupava (la relació entre la mes coneguda obra de George Orwell -1984- i la situació actual del control social a Catalunya i al Regne Unit), s’ha posat especial èmfasi en l’establiment de vincles amb investigadors del Regne Unit; com a conseqüència, s’ha treballat amb dos de les persones “associades” al projecte (Phillip Carney i David Porteous) intercanviant dades, informació i dissenyant accions, en una col•laboració que té projecció en el futur immediat -amb la publicació d’un llibre conjunt- i mediat -mitjançant la integració de investigadors participants en aquest projecte en altres accions de recerca d’abast europeu-. Les accions realitzades en funció d’això explicat es descriuen en aquesta memòria, acompanyades d’un breu resum de les troballes mes significatives.

Control dolor post quirúrgic pacients intervinguts hèrnia inguinal per CMA

El dolor post-operatori és un dels problemes més importants que segons la OMS afecta als pacients intervinguts quirúrgicament i el que més els preocupa. Any rere any hi ha un increment del nombre de pacients intervinguts per Cirurgia Major ambulatòria al nostre país de manera que ha de ser el mateix usuari i la família els que facilitin les cures als pacients al propi domicili. Aquest estudi planteja si introduir intervencions educatives al servei disminueix el dolor post-operatori dels usuaris Objectiu general: Dissenyar un programa d’informació que realitzarà infermeria dirigit als cuidadors i pacients del servei de CMA i que han de ser intervinguts de hèrnia engonal. Avaluar l’eficiència del mateix programa educatiu. Metodologia: l’àmbit d’estudi d’aquest treball serà les unitats de Cirurgia Major ambulatòria de qualsevol centre de Catalunya. Es realitzarà un estudi comparatiu quantitatiu entre dos grups independents integrants per 30 participants en cadascun d’ells (total de 60 participants). Grupo A: protocol habitual de la unitat Grup B: intervenció educativa dissenyada Els participants seran pacients majors d’edat, que compleixen els requisits per ser intervinguts per Cirurgia Major Ambulatòria de Hèrnia inguinal. El participant ha de fer-ho amb un familiar responsable de les seves cures. Es realitzaran 3 enquestes al pacient i 3 al familiar responsable de les cures, la primera a les 24 hores després de la intervenció, la segona a la setmana i l’última a les 2 setmanes. Limitacions de l’estudi: en cas de que el pacient que ha de formar part de l’estudi requereixi ingrés hospitalari per alguna complicació durant la cirurgia el pacient deixa de participar en l’estudi automàticament. En cas que el pacient o familiar no contestin al telèfon el dia i l’hora pactada prèviament també deixarà de formar part de la investigació. Per aquest motiu es tindran 10 pacients de reserva per si calgués reemplaçar el subjecte d’estudi.

Post-market environmental monitoring of Bt maize in Spain: Non-target effects of varieties derived from the event MON810 on predatory fauna

The Spanish Government has established post-market environmental monitoring (PMEM) as mandatory for genetically modified (GM) crop varieties cultivated in Spain. In order to comply with this regulation, effects of Bt maize varieties derived from the event MON810 on the predatory fauna were monitored for two years in northeast and central Spain. The study was carried out with a randomized block design in maize fields of 3-4 ha on which the abundance of plant-dwelling predators and the activity-density of soil-dwelling predators in Bt vs. non-Bt near-isogenic varieties were compared. To this end, the plots were sampled by visual inspection of a certain number of plants and pitfall traps 6 or 7 times throughout two seasons. No significant differences in predator densities on plants were found between Bt and non-Bt varieties. In the pitfall traps, significant differences between the two types of maize were found only in Staphylinidae, in which trap catches in non-Bt maize were higher than in Bt maize in central Spain. Based on the statistical power of the assays, surrogate arthropods for PMEM purposes are proposed; Orius spp. and Araneae for visual sampling and Carabidae, Araneae, and Staphylinidae for pitfall trapping. The other predator groups recorded in the study, Nabis sp. and Coccinellidae in visual sampling and Dermaptera in pitfall trapping, gave very poor power results. To help to establish a standardized protocol for PMEM of genetically modified crops, the effect-detecting capacity with a power of 0.8 of each predator group is given.

Effects of a post-weaning cafeteria diet in young rats: metabolic syndrome, reduced activity and low anxiety-like behaviour.

Among adolescents, overweight, obesity and metabolic syndrome are rapidly increasing in recent years as a consequence of unhealthy palatable diets. Animal models of diet-induced obesity have been developed, but little is known about the behavioural patterns produced by the consumption of such diets. The aim of the present study was to determine the behavioural and biochemical effects of a cafeteria diet fed to juvenile male and female rats, as well as to evaluate the possible recovery from these effects by administering standard feeding during the last week of the study. Two groups of male and female rats were fed with either a standard chow diet (ST) or a cafeteria (CAF) diet from weaning and for 8 weeks. A third group of males (CAF withdrawal) was fed with the CAF diet for 7 weeks and the ST in the 8th week. Both males and females developed metabolic syndrome as a consequence of the CAF feeding, showing overweight, higher adiposity and liver weight, increased plasma levels of glucose, insulin and triglycerides, as well as insulin resistance, in comparison with their respective controls. The CAF diet reduced motor activity in all behavioural tests, enhanced exploration, reduced anxiety-like behaviour and increased social interaction; this last effect was more pronounced in females than in males. When compared to animals only fed with a CAF diet, CAF withdrawal increased anxiety in the open field, slightly decreased body weight, and completely recovered the liver weight, insulin sensitivity and the standard levels of glucose, insulin and triglycerides in plasma. In conclusion, a CAF diet fed to young animals for 8 weeks induced obesity and metabolic syndrome, and produced robust behavioural changes in young adult rats, whereas CAF withdrawal in the last week modestly increased anxiety, reversed the metabolic alterations and partially reduced overweight.

Effectiveness of a primary care-based intervention to reduce sitting time in overweight and obese patients (SEDESTACTIV): a randomized controlled trial; rationale and study design

Background: There is growing evidence suggesting that prolonged sitting has negative effects on people's weight, chronic diseases and mortality. Interventions to reduce sedentary time can be an effective strategy to increase daily energy expenditure. The purpose of this study is to evaluate the effectiveness of a six-month primary care intervention to reduce daily of sitting time in overweight and mild obese sedentary patients. Method/Design: The study is a randomized controlled trial (RCT). Professionals from thirteen primary health care centers (PHC) will randomly invite to participate mild obese or overweight patients of both gender, aged between 25 and 65 years old, who spend 6 hours at least daily sitting. A total of 232 subjects will be randomly allocated to an intervention (IG) and control group (CG) (116 individuals each group). In addition, 50 subjects with fibromyalgia will be included. Primary outcome is: (1) sitting time using the activPAL device and the Marshall questionnaire. The following parameters will be also assessed: (2) sitting time in work place (Occupational Sitting and Physical Activity Questionnaire), (3) health-related quality of life (EQ-5D), (4) evolution of stage of change (Prochaska and DiClemente's Stages of Change Model), (5) physical inactivity (catalan version of Brief Physical Activity Assessment Tool), (6) number of steps walked (pedometer and activPAL), (7) control based on analysis (triglycerides, total cholesterol, HDL, LDL, glycemia and, glycated haemoglobin in diabetic patients) and (8) blood pressure and anthropometric variables. All parameters will be assessed pre and post intervention and there will be a follow up three, six and twelve months after the intervention. A descriptive analysis of all variables and a multivariate analysis to assess differences among groups will be undertaken. Multivariate analysis will be carried out to assess time changes of dependent variables. All the analysis will be done under the intention to treat principle. Discussion: If the SEDESTACTIV intervention shows its effectiveness in reducing sitting time, health professionals would have a low-cost intervention tool for sedentary overweight and obese patients management.

Reconstructing native American migrations from whole-genome and whole-exome data.

There is great scientific and popular interest in understanding the genetic history of populations in the Americas. We wish to understand when different regions of the continent were inhabited, where settlers came from, and how current inhabitants relate genetically to earlier populations. Recent studies unraveled parts of the genetic history of the continent using genotyping arrays and uniparental markers. The 1000 Genomes Project provides a unique opportunity for improving our understanding of population genetic history by providing over a hundred sequenced low coverage genomes and exomes from Colombian (CLM), Mexican-American (MXL), and Puerto Rican (PUR) populations. Here, we explore the genomic contributions of African, European, and especially Native American ancestry to these populations. Estimated Native American ancestry is 48% in MXL, 25% in CLM, and 13% in PUR. Native American ancestry in PUR is most closely related to populations surrounding the Orinoco River basin, confirming the Southern American ancestry of the Taíno people of the Caribbean. We present new methods to estimate the allele frequencies in the Native American fraction of the populations, and model their distribution using a demographic model for three ancestral Native American populations. These ancestral populations likely split in close succession: the most likely scenario, based on a peopling of the Americas 16 thousand years ago (kya), supports that the MXL Ancestors split 12.2kya, with a subsequent split of the ancestors to CLM and PUR 11.7kya. The model also features effective populations of 62,000 in Mexico, 8,700 in Colombia, and 1,900 in Puerto Rico. Modeling Identity-by-descent (IBD) and ancestry tract length, we show that post-contact populations also differ markedly in their effective sizes and migration patterns, with Puerto Rico showing the smallest effective size and the earlier migration from Europe. Finally, we compare IBD and ancestry assignments to find evidence for relatedness among European founders to the three populations.

Principals barreres i motivacions per a la pràctica de l’activitat física de la població de 17 a 25 anys, a la localitat de Cardedeu

Actualment hi ha multitud d’estudis científics que demostren els beneficis que aporta a la nostra salut la pràctica regular d’activitat física, però aquest fet no genera per si sol uns nivells de pràctica suficients en la població. El present estudi s’emmarca en una investigació realitzada amb nois i noies d’entre 17 i 25 anys de la localitat de Cardedeu, sobre les diferents barreres i motivacions per a la pràctica d’activitat física de forma regular en aquest sector concret de la població. S’han analitzat els resultats obtinguts en l’aplicació dels qüestionaris ABPEF (Capdevila, 2005) i AMPEF (Capdevila, 2000) sobre una mostra formada per un total de 38 participants. En els resultats obtinguts destaquen les barreres relacionades amb la fatiga, la mandra, les obligacions i la falta de temps. Amb referència a motivacions més significatives trobem aquells ítems relacionats amb la salut, la imatge corporal, la diversió i el benestar.

Ralstonia solanacearum, a widespread bacterial plant pathogen in the post-genomic era

Ralstonia solanacearum is a soil-borne bacterium causing the widespread disease known as bacterial wilt. Ralstonia solanacearum is also the causal agent of Moko disease of banana and brown rot of potato. Since the last R. solanacearum pathogen profile was published 10 years ago, studies concerning this plant pathogen have taken a genomic and post-genomic direction. This was pioneered by the first sequenced and annotated genome for a major plant bacterial pathogen and followed by many more genomes in subsequent years. All molecular features studied now have a genomic flavour. In the future, this will help in connecting the classical field of pathology and diversity studies with the gene content of specific strains. In this review, we summarize the recent research on this bacterial pathogen, including strain classification, host range, pathogenicity determinants, regulation of virulence genes, type III effector repertoire, effector-triggered immunity, plant signalling in response to R. solanacearum, as well as a review of different new pathosystems.