Search results for "comparison"
showing 10 items of 701 documents
Global distributions of diazotrophs nitrogen fixation rates - Depth integrated values computed from a collection of source datasets - Contribution to…
2013
The MAREDAT atlas covers 11 types of plankton, ranging in size from bacteria to jellyfish. Together, these plankton groups determine the health and productivity of the global ocean and play a vital role in the global carbon cycle. Working within a uniform and consistent spatial and depth grid (map) of the global ocean, the researchers compiled thousands and tens of thousands of data points to identify regions of plankton abundance and scarcity as well as areas of data abundance and scarcity. At many of the grid points, the MAREDAT team accomplished the difficult conversion from abundance (numbers of organisms) to biomass (carbon mass of organisms). The MAREDAT atlas provides an unprecedente…
New Error Measures to Evaluate Features on Three-Dimensional Scenes
2011
In this paper new error measures to evaluate image features in three-dimensional scenes are proposed and reviewed. The proposed error measures are designed to take into account feature shapes, and ground truth data can be easily estimated. As other approaches, they are not error-free and a quantitative evaluation is given according to the number of wrong matches and mismatches in order to assess their validity
Psychometric Comparisons of Benevolent and Corrective Humor across 22 Countries: The Virtue Gap in Humor Goes International
2018
Recently, two instances of virtue-related humor: benevolent and corrective, have been introduced. Benevolent humor treats human weaknesses and wrongdoings benevolently, while corrective humor aims at correcting and bettering them. Twelve marker items for benevolent and corrective humor (BenCor) were developed, and it was demonstrated that they fill the gap between humor as temperament and virtue. The present study investigates responses to the BenCor from 25 samples in 22 countries (overall N = 7, 226). The psychometric properties of the BenCor were found to be sufficient in most of the samples, including internal consistency, unidimensionality, and factorial validity. Importantly, benevole…
Application of an innovative alignment optimisation method to a cross-cultural mean comparison of teacher self-efficacy: A cross-country study
2021
Teacher self-efficacy is a crucial personal characteristic that is important not only for teachers’ well-being but also for the overall teaching and learning. However, the difficulty to ascertain scalar invariance in the measurement of the construct has beset previous attempts of cross-cultural comparisons. This study implements an alignment optimisation method to compare and rank mean teacher self-efficacy of over 150,000 teachers across 48 countries and economies that participated in the Teaching and Learning International Survey (TALIS) that was conducted 2018. The findings show that Columbia, Portugal, United Arab Emirates, Hungary, and South Africa have teachers with the highest mean s…
Comparison results for Hessian equations via symmetrization
2007
where the λ’s are the eigenvalues of the Hessian matrix D2u of u and Sk is the kth elementary symmetric function. For example, for k = 1, S1(Du) = 1u, while, for k = n, Sn(D 2u) = detD2u. Equations involving these operators, and some more general equations of the form F(λ1, . . . , λn) = f in , (1.2) have been widely studied by many authors, who restrict their considerations to convenient cones of solutions with respect to which the operator in (1.2) is elliptic. Following [25] we define the cone 0k of ellipticity for (1.1) to be the connected component containing the positive cone 0 = {λ ∈ R : λi > 0 ∀i = 1, . . . , n} of the set where Sk is positive. Thus 0k is an open, convex, symmetric…
Validating Test Score Interpretations by Cross-National Comparison
2015
Cross-national assessment of students’ competences in higher education is becoming increasingly important in many disciplines including economics but there are few available instruments that meet psychological standards for assessing students’ economic competence in higher education (HE). One of them is the internationally valid Test of Understanding in College Economics (TUCE), which has been adapted and employed successfully in HE systems in various countries, but the test results have seldom been used for international comparisons of students’ Economic Content Knowledge (ECK). Here, we compare the German and the Japanese test adaptations of the TUCE with reference to the American origin…
Job Satisfaction Determinants of Tertiary Graduates in Europe
2015
Abstract Factors affecting the job satisfaction of tertiary graduates are studied using recent data on 13 European countries from 2010–11. Special attention is given to differences between bachelors and masters. It is found that in many countries, master's degree decreases job satisfaction. Moreover, it never increases the job satisfaction of female employees. Masters are more sensitive than bachelors to career opportunities, variety in work and whether learning is required in the job; while bachelors are more sensitive to the risk of moving to a less interesting job and monetary compensation. Overeducation generally does not affect the job satisfaction of bachelors, but strongly decreases …
Laboratory phase‐contrast nanotomography of unstained Bombus terrestris compound eyes
2021
Imaging the visual systems of bumblebees and other pollinating insects may increase understanding of their dependence on specific habitats and how they will be affected by climate change. Current high-resolution imaging methods are either limited to two dimensions (light- and electron microscopy) or have limited access (synchrotron radiation x-ray tomography). For x-ray imaging, heavy metal stains are often used to increase contrast. Here, we present micron-resolution imaging of compound eyes of buff-tailed bumblebees (Bombus terrestris) using a table-top x-ray nanotomography (nano-CT) system. By propagation-based phase-contrast imaging, the use of stains was avoided and the microanatomy co…
An International Comparison of Skills, Traits and Job Mobility
2019
Making use of an international survey that directly assesses the cognitive skills of the adult population, I document systematic differences in the effect of skills on job mobility across the 37 countries in the sample. While economic growth is associated with relatively higher job mobility among skilled workers, the prevalence of information and communication technology (ICT) in the workplace is associated with relatively lower job mobility. The documented patterns are in line with Schumpeterian growth models of creative destruction in which skilled workers transition to jobs with advanced technologies more easily.
Neoliberalismo y procesos de privatización 'en' la educación pública en Inglaterra y España
2021
El neoliberalismo desde la década de los 80 ha impactado en las agendas de política educativa tanto nacionales como internacionales con el objetivo de introducir la racionalidad competitiva en el seno de los sistemas educativos. En gran medida, estas políticas introducen mecanismos que ponen a funcionar a los centros educativos bajo formas pedagógicas, de gestión y de gobierno similares a las de una empresa. No en vano, el impacto y profundidad de estas reformas están relacionadas con la historia, contexto, economía y objetivos de los responsables políticos en el poder en un momento dado. Por lo tanto, no podemos hablar de un neoliberalismo, sino de diversos neoliberalismos. En el presente …