Resultados de investigación

Research project looking to develop a comprehensive proposal enabling higher transparency levels between short term performance levels and the strategic design of the organization. Descripción del dataset: Normalized KPIs are provided as well as the references for the R scripts making it possible to generate the condensed representation given

Project developed by Christopher Absell (University Gothenburg and Instituto Figuerola) Giovanni Federico (New York University Dubai) and Antonio Tena Junguito (Universidad Carlos III de Madrid and Instituto Figuerola). Dataset: Trinidad and Tobago

Datos agregados de un cuestionario dirigido a personas emprendedoras, el cual contiene ítems sobre los motivos y necesidades para iniciar una actividad emprendedora, la satisfacción con la carrera, la conciliación personal-profesional, y la situación sociodemográfica. El instrumento incluyó preguntas cerradas y escalas de valoración tipo Likert.

This study evaluates the impact of the incorporation of noble metals (M: Pt, Ru, or Rh) to Ni catalysts supported on mesostructured CeO2 (CeO2-m) for green hydrogen production through the oxidative steam reforming of acetic acid as biomass-derived compound obtained in fermentation or fast pyrolysis processes. Bimetallic catalyst formulation, including small amounts of noble metals, improved the Ni reducibility as evidenced by H2-TPR results. Catalytic results at 550 ºC demonstrate that the presence of noble metals in the catalyst formulation enhances catalytic activity in terms of acetic acid conversion and hydrogen yield compared to the unpromoted sample. Additionally, bimetallic samples show higher selectivity towards CO2 related to their role in the water-gas shift reaction, with significantly lower selectivity to intermediate products (acetone and CO). The best catalytic performance showed by Ni-Pt/CeO2-m allows to get almost complete acetic acid conversion and the highest hydrogen yield (~63%) along with the lowest coke deposition (25.6 mgcoke·gcat-1·h-1).

Recent commercialisation of seedless watermelon varieties relies on the guarantee of a high quality product. Several internal defects may deteriorate greatly this fruit: (a) creases and/or large voids in the flesh, (b) overripeness and (c) bruises due to impact. The objective of this research was to develop a feasible non-destructive procedure for detecting these defects in individual fruits, based on acoustic impulse response.

A device consisting of a microphone, structural elements and a mechanical impact generator was designed and tested. Good and defective seedless watermelons were tested with the acoustic device. Spectral parameters were examined as potential non-destructive predictors of internal disorders. Waveband magnitude parameters, obtained by summing the magnitude of the spectrum between two frequencies in a specified band width (always including between 40 and 500 Hz), were the acoustic parameters showing the best ability to detect internal disorders.

Dataset description

The acoustic response of 158 watermelons measured by hitting the fruit with an impactor and detecting the output sound by a microphone on the opposite side and 90º (as referred in derived publication and PhD thesis, see further details in this file)

Metodology

Each watermelon was acoustically excited on two positions, both around the equator and rotated 908. Nine measurements, divided in groups of three repetitions for the same location, together with three locations were performed at each position, therefore 18 measurements in each fruit. Positions identify the different areas of fruit where the impact is applied, locations indicate that the fruit is taken and relocated on the same position after some time, and repetitions refer to repeated data taken without changing or touching the fruit.

Acoustic measurements were taken with a device designed and tested by consecutive phases of approximation to the final solution. The laboratory recording system used to acquire the acoustic impulse information is comprised a prepolarised free-field 12mm microphone type 4189 B&K, of a frequency range from 6 3 to 20 kHz and a sensitivity of 50mVPa 1. A signal conditioning amplifier NEXUS B&K supplied power and provided electrical loading to the transducer, amplified the signal, provided appropriate output drive signal and facilitated the selection of the optimum band-pass filters. A microphone preamplifier type 2673 B&K completed the recording system. The preamplifier amplified the signal from the microphone.

A user friendly Windows-based software, ‘SanSon 1 2’, was developed for the control of the process and the register of data, providing an easy output to be used with Microsoft Excel. The software shows in the screen the acoustic signal ‘time versus intensity’ for each test, and saves it in an ASCII file.

A fast Fourier transform (FFT) of the signal was performed to determine the frequency spectrum, and subsequently, the natural frequencies of the watermelons. Sampling at 40 kHz for 4096 points results in a frequency resolution for the FFT of 9 766 Hz. A normalised spectrum was obtained by dividing the magnitude at each frequency by the maximum magnitude of the spectrum (see publication). Different acoustic parameters were evaluated for spectral characterisation: resonant frequency, maximum amplitude of the spectrum and band magnitude (BM) of the acoustic spectrum. The frequency resolution for the spectrum (9 766 Hz) is not very narrow. Therefore it is difficult to obtain a good segregation based on the resonant frequency, unless higher differences than the resolution occur between hollow and sound watermelons. This handicap may be overcome by defining the integral in the spectrum or BMs.

The project investigates how tamoxifen modulates the tumor microenvironment through mechanobiological changes involving HIF-1A, and how these changes influence cancer cell survival. The study integrates proteomics and RNA sequencing (RNA-seq) as described in the associated publication., Proteomics analysis data deposited in PeptideAtlas under reference PASS01070. PSCs RNA sequencing (RNA-seq) data deposited in the European Nucleotide Archive (ENA) under accession ERP023834. This e-cienciaDatos entry is intended to provide institutional Open Access traceability by referencing the original repositories.

Las entrevistas a Julia León y a Germinal Rebull (hijo de Teresa Rebull) forman parte de un proyecto de investigación entorno a la canción de autor/a ibérica entre 1952 y 1986. Las entrevistas y la correspondencia abordan temas entorno a la lucha antifranquista, la segunda ola del feminismo ibérico y las relaciones personales entre cantantes de diferentes partes de España.

Entrevista a la cantautora Julia León tras encuentros en Madrid en 2019 y 2020 y correspondencia con Germinal Rebull (familia de Teresa Rebull) entre 2020 y 2021.

La base de datos consta de 8 variables: 1. Sexo: variable sexo con dos niveles: 1=mujer; 2=hombre 2. CERQ_NEG: puntuación en la dimensión CERQ menos adaptativo en su versión corta de 18 ítems. 3. CERQ_POS: puntuación en la dimensión CERQ adaptativo en su versión corta de 18 ítems. 4. CTX_IG: puntuación en índice global de problemas contextuales 5. Abuso_alcohol: puntuación en la escala multicage alcohol. 6. Adiccion_internet: puntuación en la escala multicage internet. 7. Con_suicida: puntuación en la escala de conducta suicida sentia.

Transient Stability Constrained Optimal Power Flow (TSCOPF) is a nonlinear optimization problem used to perform economic dispatches while ensuring transient stability. This paper proposes a multi-contingency TSCOPF model that retains the dynamics of all generators and includes a transient synchronous generator dq-axis model. Program write_tscopf.py automatically reads the system data from standard PSSE raw files, builds the TSCOPF model tscopf.gms on high-level modelling system GAMS and solves it using a non-heuristic Interior Point algorithm. This approach facilitates the application of the model to a variety of systems and scenarios. Data for the New England 39 Bus System and the IEEE 118 Bus system are included.

El informante Ventura fue carbonero. Principales trabajos del campo. Tipos de árboles antes y ahora (repueblan con encinas). Árboles frutales. Olivares. No se hacía vino. La matanza solo la hacían las personas más pudientes, aunque progresivamente se fue generalizando. Ganado caprino, ovino y vacuno., O informante Ventura era carvoeiro. Principais empregos no campo. Tipos de árvores de então e agora (repovoadas com azinheiras). Árvores de fruto. Olivais. Não se fazia vinho. A matança só era praticada pelas pessoas mais ricas, embora gradualmente se tenha tornado mais generalizada. Caprinos, ovinos e bovinos., The informant Ventura was a charcoal maker. Main jobs in the countryside. Types of trees then and now (repopulated with holm oaks). Fruit trees. Olive groves. No wine was made. Slaughtering was only done by the wealthiest people, although it gradually became more widespread. Goats, sheep and cattle.