Search results for "instrument development"

Twenty Years of Airborne Water Vapor and Total Water Measurements of a Diode Laser Based Photoacoustic Instruments

2020

We present relevant issues collected over twenty years of development and operation of an airborne water vapour / total water detector based on photoacoustic spectroscopy. The WaSulHygro instrument possesses high selectivity, short response time, and wide dynamic range, that are key requirements against trace gas measurement systems for applications in atmospheric sciences. Besides the major properties of WaSul-Hygro we discuss our efforts to develop a robust instruments that have proved its long-term reliability over the last fifteen years operating on-board a commercial aircraft within the framework of the CARIBIC project.2

Development and testing of an instrument (HeSoEduCo) for health and social care educators' competence in professional education

2019

Abstract Background: Health and social care education is highly important for preparing future professionals for their future roles in sustainable health and social care. However, previous studies have emphasized that health and social care educators’ competence is complex and poorly defined. Thus, there is a clear need for a psychometrically validated instrument to enable clarification and assessment of the required skills. Objective: To develop and psychometrically validate an instrument (the HeSoEduCo) for assessing health and social care educators’ competence in higher and professional education. Design: Cross-sectional study. Methods: A HeSoEduCo instrument, with items inviting 1–4 Lik…

Play assessment for group settings : validating a measurement tool for assessment of children's play performance in the day-care context

2012

Validation of the Spanish Version of the Beginning Breastfeeding Survey-Cumulative: A Follow-up Study

2019

Background: The Beginning Breastfeeding Survey-Cumulative (BBSC) is an instrument that assesses the overall maternal perception of breastfeeding effectiveness during the early postpartum period. Research aims: The aims of this study were to adapt and validate a Spanish version of the BBSC and provide new evidence regarding its validity. Methods: A standard forward and back-translation process was used to obtain the Spanish version of the questionnaire (BBSC-E). A sample of 793 breastfeeding mothers was used. Data were obtained from clinical records and questionnaires self-administered at discharge and at 1–4 months postpartum. The factorial structure of the BBSC-E was examined with both an …

Characterization of a Newly Developed Aircraft-Based Laser Ablation Aerosol Mass Spectrometer (ALABAMA) and First Field Deployment in Urban Pollution…

2011

We present here the development and first field deployment of a novel Aircraft-based Laser ABlation Aerosol MAss spectrometer (ALABAMA), which is capable of measuring the chemical composition and size of individual ambient aerosol particles in the size range between 150 and 900 nm. The instrument uses a continuous wave 532 nm laser to size and detect the particles, a pulsed 266 nm laser to ablate and ionize the particles, and a bipolar, Z-shaped time-of-flight mass spectrometer to detect positive and negative ions. The ALABAMA fits into a 19"-aircraft rack of 150 cm height and has a total weight of 140 kg, thus currently being one of the smallest and lightest-weight instruments of its type.…

Development and Psychometric Validation of the Brief Nurses' Practice Environment Scale and Its Relation to Burnout Syndrome and Job Satisfaction: A …

2020

Introduction: Nursing environment is a vast concept that traditionally has included a wide range of job characteristics and has been related to burnout and job satisfaction. For its measurement, the Practice Environment Scale of the Nursing Work Index (PESNWI) stands out. However, shorter instruments are needed. The purpose of the study is to develop and test the Brief Nurses' Practice Environment (BNPE) Scale.Methods: The BNPE Scale was developed and tested in a sample of 210 Spanish nurses (data collection 2018).Results: Cronbach's alpha was 0.702. The confirmatory factor analysis (CFA), with an excellent fit, offered evidence of internal validity. Regarding validity, the BNPE Scale predi…