ERIPIA. Continente sin Retorno

ERIPIA es un proyecto de intervención en espacios públicos considerados en desuso, utilizando elementos cotidianos o considerados de poca importancia, incluso residuales. Supone un intento de reactivar esas zonas y las historias que albergan, mediante la modificación sutil del espacio

El programa de vigilancia ambiental de piscifactorias en jaulas flotantes

Se ha analizado el programa de vigilancia ambiental (PVA) de cuatro piscifactorías marinas situadas en el Mediterráneo occidental con el fin de evaluar su grado de idoneidad para detectar posibles impactos en el medio marino. Se ha revisado un elevado número de variables y parámetros físicos, químicos y biológicos en aguas y sedimentos, así como su frecuencia de muestreo. Este trabajo concluye que la calidad del agua no puede ser considerada como un indicador consistente de los impactos, y que resulta mucho más representativo estudiar variables relacionadas con los sedimentos, en especial las relacionadas con el bentos marino. Finalmente, se hace una propuesta de muestreo para los PVA en piscifactorías marinas.The Environmental Monitoring Programme for four fish farms located in the western Mediterranean Sea was studied in order to assess their suitability for detecting possible environmental impact in the surrounding marine ecosystems. A significant number of physical, chemical, and biological parameters, both in water and sediments, were reviewed, as well as their monitoring frequency. These results lead to the conclusion that water quality should not be considered a strong indicator of caged fish farms impact; it is much more appropriate to use other parameters related to sediments, particularly those indicating the health of benthos ecosystems. An Environmental Monitoring Programme for cage fish farms is proposed.Martí Martínez, E.; Martí Insa, CM.; Martínez Guijarro, MR.; Paches Giner, MAV.; Falco Giaccaglia, SL. (2005). El programa de vigilancia ambiental de piscifactorias en jaulas flotantes. Boletin- Instituto Espanol de Oceanografia. 21(21):67-73. http://hdl.handle.net/10251/36174S6773212

Solution-based synthesis and processing of Sn- and Bi-doped Cu3SbSe4 nanocrystals, nanomaterials and ring-shaped thermoelectric generators

Copper-based chalcogenides that comprise abundant, low-cost, and environmental friendly elements are excellent materials for a number of energy conversion applications, including photovoltaics, photocatalysis, and thermoelectrics (TE). In such applications, the use of solution-processed nanocrystal (NC) to produce thin films or bulk nanomaterials has associated several potential advantages, such as high material yield and throughput, and composition control with unmatched spatial resolution and cost. Here we report on the production of Cu3SbSe4 (CASe) NCs with tuned amounts of Sn and Bi dopants. After proper ligand removal, as monitored by nuclear magnetic resonance and infrared spectroscopies, these NCs were used to produce dense CASe bulk nanomaterials for solid state TE energy conversion. By adjusting the amount of extrinsic dopants, dimensionless TE figures of merit (ZT) up to 1.26 at 673 K were reached. Such high ZT values are related to an optimized carrier concentration by Sn doping, a minimized lattice thermal conductivity due to efficient phonon scattering at point defects and grain boundaries, and to an increase of the Seebeck coefficient obtained by a modification of the electronic band structure with the Bi doping. Nanomaterials were further employed to fabricate ring-shaped TE generators to be coupled to hot pipes and which provided 20 mV and 1 mW per TE element when exposed to a 160 °C temperature gradient. The simple design and good thermal contact associated with the ring geometry and the potential low cost of the material solution processing may allow the fabrication of TE generators with short payback times.Peer ReviewedPostprint (author's final draft

Eutrophication of sediments in the Cullera bay: composition and abundance of macrobenthos

Nutrient retention in estuaries and semi-enclosed bays is a principal contributing factor to the relatively high production of these marine systems. Cullera bay occasionally presents serious environmental problems owing to discharge of the Jucar freshwater, sewage from a marine outfall and nutrients release of the sediment. This study examine the macrobenthos in order to evaluate their composition and abundance in anthropogenically impacted coastal sediments and waters. A total of five field campaigns were carried out during years 2002-2003, but, in this paper, we shown the results of the first campaign. The macrobenthos was collected at twelve stations along three transects using a type of Peterson grab, but only we have used the bivalve molluscs because they represent most benthic biomass. To evaluate the influence of environmental factors on the bivalves, we took undisturbed sediment and bottom-water samples at fourteen stations. In water samples we have studied salinity, nutrients, chlorophyll a and suspended solids, and granulometry, organic matter, total nitrogen and total phosphorous in sediment samples. In general exists a high organic matter accumulated in sediments of the bay that increases with depth. The concentration of nutrients of the waters are low, however, the concentration of chlorophyll a suggests a eutrophic character of the shallowest zones. Although bivalve density do not show a clear pattern with every parameters measured, we find some relationships between most abundant bivalves (Donax spp. and Spisula subtruncata) and depth, chlorophyll a of waters and granulometry and nutrients of sediments.Rodilla Alama, M.; Martí Martínez, E.; Falco Giaccaglia, SL.; González Del Rio Rams, J.; Sierra, J.; Sánchez-Arcilla, A. (2006). Eutrophication of sediments in the Cullera bay: composition and abundance of macrobenthos. Journal of Coastal Research. SI 39:1843-1847. http://hdl.handle.net/10251/3617718431847SI 3

Desarrollo de la escala EDSOL para la detección de la soledad existencial en enfermos al final de la vida

Objetivo: Presentar el desarrollo de la escala de detección de la soledad existencial (EDSOL) en personas con enfermedades avanzadas en tratamiento paliativo. Método: Se describe el proceso de elaboración de la escala Detección de la Soledad Existencial EDSOL. Para ello, 1) se ha revisado la bibliografía existente sobre el tema; 2) se ha establecido un marco teórico de referencia; 3) se han definido los criterios que debía cumplir el instrumento de cribado; y 4) se ha consultado con expertos y enfermos la adecuación de los ítems de la escala. Resultados: Se presenta a la escala EDSOL, que consta de dos partes: 1) tres preguntas dirigidas a los enfermos; y 2) diferentes observaciones realizadas por el personal sanitario acerca de la presencia de signos externos de soledad existencial. La escala final fue revisada por enfermos y profesionales. Conclusión: La escala EDSOL es una herramienta apropiada para identificar la presencia de Soledad Existencial en pacientes al final de la vida. En este caso, se propondrá su uso sistemático en la detección temprana de la Soledad Existencial y la implementación de intervenciones asistenciales específicasAim: This paper presents the development of Detection of Existential Loneliness Scale (EDSOL) of patients with advanced disease/terminal illness that receiving palliative care. Method: The process of preparing the scale is described. For this: 1) the literature on the subject has been revised, 2)theoretical framework has been established, 3) it has been defined the criteria to be met by the screening tool, and 4) the final scale was reviewed by patients and experts. Results: The EDSOL scale consists of two parts: 1) three questions addressed to patients and; 2) several questions addressed to health staff about the observation of external signs of Existential Loneliness. The final scale was reviewed by patients and experts (facie validity) showing good validity. Conclussion: The EDSOL scale will be an appropriate tool for identifying the Existential Loneliness of patients at the end of life or advanced illness. In this case, we will propose the systematic use of EDSOL for early detection and specific interventions on existential loneliness experience

Falls predict acute hospitalization in Parkinson's disease

Background: There is a need for identifying risk factors for hospitalization in Parkinson's disease (PD) and also interventions to reduce acute hospital admission. Objective: To analyze the frequency, causes, and predictors of acute hospitalization (AH) in PD patients from a Spanish cohort. Methods: PD patients recruited from 35 centers of Spain from the COPPADIS-2015 (COhort of Patients with PArkinson's DIsease in Spain, 2015) cohort from January 2016 to November 2017, were included in the study. In order to identify predictors of AH, Kaplan-Meier estimates of factors considered as potential predictors were obtained and Cox regression performed on time to hospital encounter 1-year after the baseline visit. Results: Thirty-five out of 605 (5.8%) PD patients (62.5±8.9 years old; 59.8% males) presented an AH during the 1-year follow-up after the baseline visit. Traumatic falls represented the most frequent cause of admission, being 23.7% of all acute hospitalizations. To suffer from motor fluctuations (HR [hazard ratio] 2.461; 95% CI, 1.065-5.678; p = 0.035), a very severe non-motor symptoms burden (HR [hazard ratio] 2.828; 95% CI, 1.319-6.063; p = 0.008), falls (HR 3.966; 95% CI 1.757-8.470; p = 0.001), and dysphagia (HR 2.356; 95% CI 1.124-4.941; p = 0.023) was associated with AH after adjustment to age, gender, disease duration, levodopa equivalent daily dose, total number of non-antiparkinsonian drugs, and UPDRS-IIIOFF. Of the previous variables, only falls (HR 2.998; 95% CI 1.080-8.322; p = 0.035) was an independent predictor of AH. Conclusion: Falls is an independent predictor of AH in PD patients

Association of candidate genetic variants and circulating levels of ApoE/ApoJ with common neuroimaging features of cerebral amyloid angiopathy

IntroductionCerebral amyloid angiopathy (CAA) is characterized by the accumulation of amyloid-beta (A beta) in brain vessels and is a main cause of lobar intracerebral hemorrhage (ICH) in the elderly. CAA is associated with magnetic resonance imaging (MRI) markers of small vessel disease (SVD). Since A beta is also accumulated in Alzheimer's disease (AD) in the brain parenchyma, we aimed to study if several single nucleotide polymorphisms (SNPs) previously associated with AD were also associated with CAA pathology. Furthermore, we also studied the influence of APOE and CLU genetic variants in apolipoprotein E (ApoE) and clusterin/apolipoprotein J (ApoJ) circulating levels and their distribution among lipoproteins. MethodsThe study was carried out in a multicentric cohort of 126 patients with lobar ICH and clinical suspicion of CAA. ResultsWe observed several SNPs associated with CAA neuroimaging MRI markers [cortical superficial siderosis (cSS), enlarged perivascular spaces in the centrum semiovale (CSO-EPVS), lobar cerebral microbleeds (CMB), white matter hyperintensities (WMH), corticosubcortical atrophy and CAA-SVD burden score]. Concretely, ABCA7 (rs3764650), CLU (rs9331896 and rs933188), EPHA1 (rs11767557), and TREML2 (rs3747742) were significantly associated with a CAA-SVD burden score. Regarding circulating levels of apolipoproteins, protective AD SNPs of CLU [rs11136000 (T) and rs9331896 (C)] were significantly associated with higher HDL ApoJ content in the lobar ICH cohort. APOE epsilon 2 carriers presented higher plasma and LDL-associated ApoE levels whereas APOE epsilon 4 carriers presented lower plasma ApoE levels. Additionally, we observed that lower circulating ApoJ and ApoE levels were significantly associated with CAA-related MRI markers. More specifically, lower LDL-associated ApoJ and plasma and HDL-associated ApoE levels were significantly associated with CSO-EPVS, lower ApoJ content in HDL with brain atrophy and lower ApoE content in LDL with the extent of cSS. DiscussionThis study reinforces the relevance of lipid metabolism in CAA and cerebrovascular functionality. We propose that ApoJ and ApoE distribution among lipoproteins may be associated with pathological features related to CAA with higher ApoE and ApoJ levels in HDL possibly enhancing atheroprotective, antioxidative, and anti-inflammatory responses in cerebral beta-amyloidosis

Phase I, multicenter, open-label study of intravenous VCN-01 oncolytic adenovirus with or without nab-paclitaxel plus gemcitabine in patients with advanced solid tumors

Background VCN-01 is an oncolytic adenovirus (Ad5 based) designed to replicate in cancer cells with dysfunctional RB1 pathway, express hyaluronidase to enhance virus intratumoral spread and facilitate chemotherapy and immune cells extravasation into the tumor. This phase I clinical trial was aimed to find the maximum tolerated dose/recommended phase II dose (RP2D) and dose-limiting toxicity (DLT) of the intravenous delivery of the replication-competent VCN-01 adenovirus in patients with advanced cancer. Methods Part I: patients with advanced refractory solid tumors received one single dose of VCN-01. Parts II and III: patients with pancreatic adenocarcinoma received VCN-01 (only in cycle 1) and nab-paclitaxel plus gemcitabine (VCN-concurrent on day 1 in Part II, and 7days before chemotherapy in Part III). Patients were required to have anti-Ad5 neutralizing antibody (NAbs) titers lower than 1/350 dilution. Pharmacokinetic and pharmacodynamic analyses were performed. Results 26% of the patients initially screened were excluded based on high NAbs levels. Sixteen and 12 patients were enrolled in Part I and II, respectively: RP2D were 1 x10(13) viral particles (vp)/patient (Part I), and 3.3x10(12) vp/patient (Part II). Fourteen patients were included in Part Ill: there were no DLTs and the RP2D was 1 x10(13) vp/patient. Observed DLTs were grade 4 aspartate aminotransferase increase in one patient (Part I, 1x10(13) vp), grade 4 febrile neutropenia in one patient and grade 5 thrombocytopenia plus enterocolitis in another patient (Part II, 1 x10(13) vp). In patients with pancreatic adenocarcinoma overall response rate were 50% (Part II) and 50% (Part III). VCN-01 viral genomes were detected in tumor tissue in five out of six biopsies (day 8). A second viral plasmatic peak and increased hyaluronidase serum levels suggested replication after intravenous injection in all patients. Increased levels of immune biomarkers (interferon- r,soluble lymphocyte activation ne-3, interleukin (IL)-6, IL-10) were found after VCN-01 administration. Conclusions Treatment with VCN-01 is feasible and has an acceptable safety. Encouraging biological and clinical activity was observed when administered in combination with nab-paditaxel plus gemcitabine to patients with pancreatic adenocarcinoma

Tobacco cessation among smokers under substance use treatment for alcohol and/or cannabis: study protocol and pilot study

Background: Approximately 80% of people with a substance use disorder (SUD) are smokers. Starting SUD treatment offers the opportunity to also quit smoking. The ACT-ATAC project aims to identify the predictors associated with smoking cessation among persons treated for alcohol and/or cannabis use disorder in Barcelona. This manuscript reports its methodology and the experience of carrying it out during the COVID-19 pandemic. Methods: Mixed methods project with three substudies. Substudy 1 (S1) comprises heterogeneous discussion groups among clinicians. S2 has two prospective cohorts composed of smokers under treatment for alcohol and/or cannabis use disorder and the clinicians in charge of these patients. Participating smokers will be followed for 12 months and interviewed about their substance use and the tobacco cessation services received using the Spanish version of the users' Knowledge, Attitudes, and Services (S-KAS) scale. The clinicians will be asked about their self-reported practices in smoking cessation using the Knowledge, Attitudes, and Practices (S-KAP) scale. S3 comprises heterogeneous discussion groups with smokers. Data will be triangulated using qualitative and quantitative analyses. To facilitate the recruitment process, the researchers have introduced several strategies (design clear protocols, set monthly online meetings, extend the project, provide gift cards, etc.). Discussion: The results of S1 were used to develop the questionnaires. S2 required some adjustments due to the COVID-19 pandemic, particularly the follow-up interviews being conducted by phone instead of face-to-face, and the recruitment rhythm was lower than expected. Recruitment will last until reaching at least 200-250 users. The fieldwork could not have been possible without the collaboration of the ACT-ATAC team and the introduction of several strategies

Evaluación de las propiedades psicométricas de la Escala de Detección de la Soledad Existencial en pacientes con enfermedades avanzadas

Objetivo: Analizar las propiedades psicométricas y la utilidad clínica de la Escala de Soledad Existencial (EDSOL) en enfermos hospitalizados con enfermedad avanzada. Método: Para determinar las propiedades psicométricas de la escala, se administró la escala EDSOL junto con otros instrumentos a 103 pacientes adultos con enfermedades avanzadas ingresados en 5 unidades de cuidados paliativos de hospitales catalanes. Resultados: La escala presenta una excelente fiabilidad medida a través del alfa de Cronbach (0,902) y una adecuada estabilidad temporal (r=0,71). La escala mostró correlaciones positivas y significativas con ansiedad y depresión de la escala HADS y con la suma total de la misma, así como con la valoración clínica psicológica (p<0,01). A través del análisis estadístico de las curvas ROC se determinó que la escala presentaba una sensibilidad del 79,8% y una especificidad del 74,6% y se sugiere que el punto de corte para la detección de la EDSOL sea una puntuación de 5. Conclusiones: La EDSOL presenta unas buenas propiedades psicométricas, es sencilla, breve, fiable y fácil de administrar. Consideramos que es una escala útil para detectar la presencia de soledad existencial en enfermos hospitalizados que padecen enfermedades avanzada