Search results for "dolo"
showing 10 items of 4274 documents
Data for: Variability in δ13C values between individual Daphnia ephippia: Implications for palaeo-studies
2018
Table providing the d13C values of individual Daphnia ephippia determined through laser ablation, nano combustion gas chromatography and isotope ratio mass spectrometry.
Unveiling community patterns and trophic niches of tropical and temperate ants using an integrative framework of field data, stable isotopes and fatt…
2018
Background: The use and partitioning of trophic resources is a central aspect of community function. On the ground of tropical forests, dozens of ant species may be found together and ecological mechanisms should act to allow such coexistence. One hypothesis states that niche specialization is higher in the tropics, compared to temperate regions. However, trophic niches of most species are virtually unknown. Several techniques might be combined to study trophic niche, such as field observations, fatty acid analysis (FAA) and stable isotope analysis (SIA). In this work, we combine these three techniques to unveil partitioning of trophic resources in a tropical and a temperate community. We d…
Twenty Years of Basic Vocational Education Provision in Spain: Changes and Trends
2015
International journal for research in vocational education and training 2 (2015) 2, S. 137-151
Regression with imputed covariates: A generalized missing-indicator approach
2011
A common problem in applied regression analysis is that covariate values may be missing for some observations but imputed values may be available. This situation generates a trade-off between bias and precision: the complete cases are often disarmingly few, but replacing the missing observations with the imputed values to gain precision may lead to bias. In this paper, we formalize this trade-off by showing that one can augment the regression model with a set of auxiliary variables so as to obtain, under weak assumptions about the imputations, the same unbiased estimator of the parameters of interest as complete-case analysis. Given this augmented model, the bias-precision trade-off may the…
A new approach to modelling the input-output structure of regional economies using non-survey methods
2021
AbstractThis paper proposes a new approach to the regionalization of national input–output tables where suitable regional data are scarce and analysts are considering using location quotients (LQs). We focus on the FLQ formula, which frequently yields the best results of the pure LQ-based methods, and develop an enhanced way of implementing this approach. We use a modified cross-entropy (MCE) method, along with a regression model, to estimate values of the unknown parameter δ in the FLQ formula, specific to both region and country. An analysis of survey-based data for 16 South Korean regions reveals that the proposed FLQ+ approach yields more accurate estimates of both input coefficients an…
Understanding entrepreneurship development in Latvia: a cross-disciplinary approach
2011
This paper analyses economic and educational challenges on the way of understanding and formation of entrepreneurship in Latvia in its almost 20-year long post socialistic period. Along with the state support programmes for small business development, entrepreneurship as a new concept is researched integrating as well the world experience in this field. It is shown that entrepreneurship is a dynamic system of the components determined in mixed methods research. The elaborated holistic functional-structural model of entrepreneurship illustrates that entrepreneurship can be developed holistically as a system when students identify, generate and realise opportunities into new personal, social …
“A certain amount of ‘recantation’”: On the origins of Frank H. Knight’s antipositivism
2016
The aim of this paper is to investigate in some detail the origins of Knight’s antipositism and to assess the main influences that brought him to a change in methodological perspective after 1921. As importantly, what follows is also an attempt to increase our general understanding of the methodological debates taking place during the early decades of the last century and to shed new light on the inherently pluralistic character of US interwar economics. This paper is organized as follows: the first section outlines Knight’s methodological views as presented in his early works; the second section discusses Knight’s “recantation” and his attack on behavioristic social science; the third sect…
Typologie des cooperatives de credit espagnoles par la methode des groupes strategiques. Une etude empirique
1997
The objective is to apply the Strategic Groups approach to the sub-sector of credit cooperatives, organizations on which Strategic Groups analysis has not been applied yet although they are part of the banking sector. Therefore taking into account the theoretical arguments presented on SG, the authors apply them according to the following stages: identification of the group of banking organizations composing the object of the study (in this case, credit cooperatives) while analysing their main characteristics; choice of the subset of banking organizations forming the analysed sample; determination of key strategic variables to define credit cooperatives’ strategies; and application of the r…
The measurement of rank mobility
2009
Abstract In this paper we investigate the problem of measuring social mobility when the social status of individuals is given by their rank. In order to sensibly represent the rank mobility of subgroups within a given society, we address the problem in terms of partial permutation matrices which include standard (“global”) matrices as a special case. We first provide a characterization of a partial ordering on partial matrices which, in the standard case of global matrices, coincides with the well-known “concordance” ordering. We then provide a characterization of an index of rank mobility based on partial matrices and show that, in the standard case of comparing global matrices, it is equi…
Institutional individualism and institutional change: the search for a middle way mode of explanation
2001
After noting the lack of enthusiasm of several well-known scholars concerning the adoption of both methodological holism and methodological individualism in its several versions, this paper shows that institutional individualism is a different mode of explanation from both of these and also that it is not the same thing as the so-called Popperian programme of situational analysis. Institutional individualism is a mode of explanation that yields non-systemic and non-reductionist explanations at the same time as it allows for the incorporation into economic theories and models of the many formal and informal institutional aspects surrounding all human interactions, whether these interactions …