Electrical properties of individual tin oxide nanowires contacted to platinum electrodes

A simple and useful experimental alternative to field-effect transistors for measuring electrical properties free electron concentration nd, electrical mobility , and conductivity in individual nanowires has been developed. A combined model involving thermionic emission and tunneling through interface states is proposed to describe the electrical conduction through the platinum-nanowire contacts, fabricated by focused ion beam techniques. Current-voltage I-V plots of single nanowires measured in both two- and four-probe configurations revealed high contact resistances and rectifying characteristics. The observed electrical behavior was modeled using an equivalent circuit constituted by a resistance placed between two back-to-back Schottky barriers, arising from the metal-semiconductor-metal M-S-M junctions. Temperature-dependent I-V measurements revealed effective Schottky barrier heights up to BE= 0.4 eV

Buque supply AHTS 250 TPF

[Resumen]: El buque proyecto es un buque de apoyo a las plataformas petrolíferas, en concreto un AHTS que además de llevar suministros a las plataformas está especializado para el transportar anclas y elemento de fondeo para plataformas además de prestar servicio de remolque. Posee un sistema de lucha contra incendios FIFI I, y un sistema de posicionamiento dinámico DP2, y además de los datos de la RPA, este buque para su propulsión cuenta con dos propulsores azimutales en popa, y para el posicionamiento dinámico, dos túnel thrusters y un thruster retráctil.[Abstract]: The Project vessel is an AHTS vessel of suport to the oil platforms that in adiction to carrying supplies to the platforms, is specualized for the transporting anchors and elements of anchor of platforms and to towing sercice. It has a FIFI I fire-fighting sistem and DP2 dynamic positioning sistem, and in adiction, this vessel has two aft azimurhal propellers ans for dynamic positioninig, two tunnel thruster and a retactable thruster on the bow.[Resumo]: O buque proxecto é un buque de apoio ás plataformas petrolíferas, en concreto trátase dun AHTS, que ademáis de levar suministros ás plataformas está especializado para transporte e manexo de anclas e elementos de fondeo para as plataformas así comoa tamén para prestar servizo de remolque. Posée un sistema de loita contraincendios FIFI I, e un sistema de posicionamento dinámico DP2, ademáis dos datos da RPA, este buque conta con dous propulsores acimutais en popa e en proa dous túnel thrusters e un thruster retráctil que será utilizados para o posicionamento dinámicoTraballo fin de grao (UDC. EPS). Enxeñaría Naval e Oceánica. Curso 2016/201

Service learning and health education: Innovation in nursing education

In an interdisciplinary service-learning project, students from the Universitat de Barcelona held a series of workshops and lectures for secondary-school students. Lectures related to healthcare and education were offered within the framework of Community Nursing, a 3rd-year subject in the bachelor's degree programme in Nursing. The objectives were to share knowledge between university students and secondary-school students on topics of mutual interest for their training, to develop health education skills and teamwork skills

Aprendiendo a educar para la salud a través del aprendizaje servicio. Compartir ideas, la universidad va al instituto

Se parte de un proyecto de aprendizaje servicio transversal de desarrollo de un ciclo de conferencias taller a estudiantes de secundaria realizadas por estudiantes de la UB. Por parte del grado en enfermería se proponen conferencias relacionadas con el cuidar y la educación para la salud. Los objetivos son compartir conocimientos entre estudiantes universitarios y de secundaria sobre temas de interés mutuo para su formación; adquirir habilidades en educación para la salud y trabajo en equipo

Codevelopment and citizenship: the nexus between policies on local migrant incorporation and migrant transnational practices in Spain

Over the last decade both national and local actors in Spain have picked up on international trends encouraging a policy framework of migration and development. Policies of codevelopment are tied in with issues of migration management in the sense of linking current and future migration flows with processes of development in the country of origin. However, this article demonstrates how codevelopment policies and initiatives of local governments in Catalonia also relate to migrants’ local process of incorporation in their country of residence. In so doing the article seeks to bridge and contribute to studies of migration and development as well as issues of national and local citizenship and migrant incorporation. Importantly, the article highlights the role of receiving country local governments in the nexus between migrant transnational practices and processes of incorporation

HST/NICMOS detection of a partially embedded, intermediate-mass pre-main-sequence population in the 30 Doradus Nebula

We present the detection of an intermediate-mass pre-main-sequence population embedded in the nebular filaments surrounding the 30 Doradus region in the Large Magellanic Cloud (LMC) using HST/NICMOS. In addition to four previously known luminous Class I infrared ``protostars,'' the NICMOS data reveal 20 new sources with intrinsic infrared excess similar to Galactic pre-main sequence stars. Based on their infrared brightness, these objects can be identified as the LMC equivalent of Galactic pre-main sequence stars. The faintest LMC Young Stellar Objects in the sample have colors similar to T Tauri and have about the same brightness as T Tauri if placed at the distance of the LMC. We find no evidence for a lower-mass cut-off in the initial mass function. Instead, the whole spectrum of stellar masses from pre-main sequence stars with ~1.5Mo to massive O stars still embedded in dense knots appears to be present in the nebular filaments. The majority of the young stellar objects can be found to the north of the central starburst cluster R136. This region is very likely evolving into an OB association.Comment: 9 pages, 4 figures, uses emulateapj.sty and psfig.sty. accepted for publication in the Astronomical Journal (August 2001 issue

New GOLD classification: longitudinal data on group assignment

Rationale: Little is known about the longitudinal changes associated with using the 2013 update of the multidimensional GOLD strategy for chronic obstructive pulmonary disease (COPD). Objective: To determine the COPD patient distribution of the new GOLD proposal and evaluate how this classification changes over one year compared with the previous GOLD staging based on spirometry only. Methods: We analyzed data from the CHAIN study, a multicenter observational Spanish cohort of COPD patients who are monitored annually. Categories were defined according to the proposed GOLD: FEV1%, mMRC dyspnea, COPD Assessment Test (CAT), Clinical COPD Questionnaire (CCQ), and exacerbations-hospitalizations. One-year follow-up information was available for all variables except CCQ data. Results: At baseline, 828 stable COPD patients were evaluated. On the basis of mMRC dyspnea versus CAT, the patients were distributed as follows: 38.2% vs. 27.2% in group A, 17.6% vs. 28.3% in group B, 15.8% vs. 12.9% in group C, and 28.4% vs. 31.6% in group D. Information was available for 526 patients at one year: 64.2% of patients remained in the same group but groups C and D show different degrees of variability. The annual progression by group was mainly associated with one-year changes in CAT scores (RR, 1.138; 95%CI: 1.074-1.206) and BODE index values (RR, 2.012; 95%CI: 1.487-2.722). Conclusions: In the new GOLD grading classification, the type of tool used to determine the level of symptoms can substantially alter the group assignment. A change in category after one year was associated with longitudinal changes in the CAT and BODE index

Safety and efficacy of ribociclib plus letrozole in patients with HR+, HER2– advanced breast cancer: Results from the Spanish sub-population of the phase 3b CompLEEment-1 trial

Background: Breast cancer is the most common malignancy and the second leading cause of cancer-related mortality in Spanish women. Ribociclib in combination with endocrine therapy (ET) has shown superiority in prolonging survival in patients with hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2-) advanced breast cancer (ABC) vs. ET alone.Methods: CompLEEment-1 is a single-arm, open-label phase 3b trial evaluating ribociclib plus letrozole in a broad population of patients with HR+, HER2- ABC. The primary endpoints were safety and tolerability. Here we report data for Spanish patients enrolled in CompLEEment-1.Results: A total of 526 patients were evaluated (median follow-up: 26.97 months). Baseline characteristics showed a diverse population with a median age of 54 years. At study entry, 56.5% of patients had visceral metastases and 8.7% had received prior chemotherapy for advanced disease. Rates of all-grade and Grade >= 3 adverse events (AEs) were 99.0% and 76.2%, respectively; 21.3% of patients experienced a serious AE, and 15.8% of AEs led to treatment discontinuation. AEs of special interest of neutropenia, increased alanine aminotransferase, increased aspartate aminotransferase and QTcF prolongation occurred in 77.8%, 14.8%, 11.4% and 4.0% of patients, respectively. Patients aged >70 years experienced increased rates of all-grade and Grade >= 3 neutropenia and anemia. Efficacy results were consistent with the global study.Conclusions: Results from Spanish patients enrolled in CompLEEment-1 are consistent with global data showing efficacy and a manageable safety profile for ribociclib plus letrozole treatment in patients with HR+, HER2-ABC, including populations of interest (NCT02941926).Trial registration: ClinicalTrials.gov NCT0294192