Search results for "SAMPLE"

Influences on Master’s Degree Students’ Economic Knowledge

2020

Despite the growing body of research, little is known about students’ economic knowledge at the beginning of, or at various points throughout, their master’s degree programs. In this study different impact factors on students’ microeconomic knowledge are tested. Based on the “utilization of learning opportunities model” by Helmke we focus on 1) individual and sociodemographic characteristics of the students, 2) their learning potential and study-related characteristics and 3) the characteristics and structure of their learning environment. For each of the three influencing factors we used different indicators that were expected to correlate with students’ knowledge. We tested the assumption…

(Table 1) Trace element/Ca ratios of Orbulina universa shells from late Neogene Mediterranean samples

2008

A Mediterranean composite sedimentary record was analyzed for Ba/Ca ratios on carbonate shells of Orbulina universa planktonic foraminifer (Ba/Ca)carb providing the opportunity to study and assess the extent of freshwater inputs on the basin and possible impacts on its dynamics during the Tortonian to Recent period. A number of scanning electron microscope analyses and auxiliary trace element measurements (Mn, Sr, and Mg), obtained from the same samples, exclude important diagenetic effects on the studied biogenic carbonates and corroborate the reliability of (Ba/Ca)carb ratios in foraminifera calcite as indicators of seawater source components during the studied interval. A long-term trend…

Stable isotopic composition of three foraminifera species in ODP Hole 160-963D

2020

Carbon-rich layers exist at both sides of the Mediterranean Sea sedimentary record and are called sapropels and organic rich layers (ORLs), respectively in the eastern and western basins. They have different levels of organic carbon accumulation and seafloor oxygen deprivation. The most recent sapropel and ORL deposition have a different timing, 10.8-6.1 and 14.5-9.0 ka respectively. Here we investigate oxygen isotopic records of three foraminifera species that occupy different habitats within the Sicily Channel water column since ~ 12.0 ka, thus in the sill between the eastern and western Mediterranean basins. These data are ice volume-corrected, to get information on water masses density …

Factor Structure and Convergent Validity of the Long and Abbreviated Versions of the Multidimensional Students’ Life Satisfaction Scale in an Italian…

2013

We examined the psychometric characteristics of the long and abbreviated versions of the Multidimensional Students’ Life Satisfaction Scale (MSLSS) in the Italian contexts. In study 1 we assessed the factorial validity and reliability of the long and abbreviated versions of the MSLSS among Italian adolescents, while in study 2 we assessed the convergent validity of the abbreviated Italian version of the MSLSS by examining the associations between life satisfaction and well-established measures of adjustment. Furthermore, we explored the effect of adolescent gender and age on life satisfaction. Participants in the study 1 were 996 adolescents (48 % males) from 14 to 18 years of age (M = 16.0…

Dynamic laser speckle analyzed considering inhomogeneities in the biological sample

2017

Dynamic laser speckle phenomenon allows a contactless and nondestructive way to monitor biological changes that are quantified by second-order statistics applied in the images in time using a secondary matrix known as time history of the speckle pattern (THSP). To avoid being time consuming, the traditional way to build the THSP restricts the data to a line or column. Our hypothesis is that the spatial restriction of the information could compromise the results, particularly when undesirable and unexpected optical inhomogeneities occur, such as in cell culture media. It tested a spatial random approach to collect the points to form a THSP. Cells in a culture medium and in drying paint, repr…

Linearization and Sample Reuse in Variance Estimation

2004

Spanish Scientists' Opinion about Science and Researcher Behavior.

2021

Encuestamos a 348 investigadores de Psicología y Educación en España, sobre temas como su percepción de una crisis en la ciencia, su confianza en la calidad de los resultados publicados y el uso de prácticas de investigación cuestionables (QRP). También se recogieron sus percepciones respecto a la presión por publicar y la competencia académica. Los resultados indican que una gran parte de la muestra de académicos españoles piensa que existe una crisis en la Ciencia, principalmente por falta de inversión económica, y duda de la calidad de los hallazgos publicados. También sienten una fuerte presión para publicar en revistas de alto factor de impacto y un clima laboral altamente competitivo.…

The effect of the emotive decisions in prospect theory.

2015

AbstractThe main purpose of this paper was to show that the certainty and reflection effects of prospect theory do not occur when stimuli have an affective value. To this end, 160 participants were asked to reply to a series of problems originally designed by Kahneman and Tversky (1979), but modified according to the contributions of Rottenstreich and Hsee (2001). The sample was divided into four experimental conditions, two in a gain situation and two in a loss situation. In both cases, affect-rich and affect-poor stimuli were applied in sure and probable alternatives. The findings showed that, in agreement with our hypotheses, the affective value of the stimuli altered the outcome predict…

Distance crossing and alignment in online humanitarian discourse

2018

Abstract This article analyzes multimodal genres of current online humanitarian discourse such as mission statements, annual reports and photo galleries to find how the construals of beneficiaries and humanitarian organizations align with the motives, values and emotional dispositions of prospective donors. The discursive reduction of distance between the donor and the beneficiary is likely to produce solicitation effects and enable self-legitimization. First, based on extant literature, the article develops a method to account for the pragmatic operations of textual ‘proximization’ and visually simulated ‘co-presence’ in humanitarian communication. Then it applies it to a sample of multimo…

Massic magnetic susceptibility and CaCO3 content at the P. ohmi and T. hugii zones from the Rio Argos X.Ag-1 section, southeastern Spain

2012

An orbital floating time scale of the Hauterivian-Barremian transition (Early Cretaceous) is proposed using high-resolution magnetic susceptibility measurements. Orbital tuning was performed on the Río Argos section (southeast Spain), the candidate for a Global boundary Stratotype Section and Point (GSSP) for the Hauterivian-Barremian transition. Spectral analyses of MS variations, coupled with the frequency ratio method, allow the recognition of precession, obliquity and eccentricity frequency bands. Orbitally-tuned magnetic susceptibility provides minimum durations for ammonite biozones. The durations of well-constrained ammonite zones are assessed at 0.78 myr for Pseudothurmannia ohmi (L…