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91.
Using the critical incident (CI) technique, concrete examples of effective and ineffective managerial behaviour (CIs) were collected from managers and non-managerial employees within private and public sector organizations situated in the north and southeast regions of Mexico. The CIs were content analysed using open, axial and selective coding to identify a smaller number of thematic categories. A total of 38 ‘manager’ and 35 ‘non-managerial employee’ behavioural categories were identified respectively, of which 82.19% (n = 60) were found to be either convergent or polar opposite in meaning. The findings suggest that what behaviourally differentiates effective managers from ineffective managers is perceived, described and defined by Mexican managers and non-managerial employees in much the same way. The study provides new insights on the issue of perceived managerial and leadership effectiveness in Mexico and is a rare example of indigenous managerial behaviour research in a non-Anglo country. 相似文献
92.
In this paper we explore the racial and ethnic self-identification of Dominican immigrants in the United States. This issue is central in understanding how immigrants experience the process of incorporation into American society. We argue that as Dominican immigrants incorporate to American life, they adopt a Hispanic or Latino identity. This identity serves both as a form of racial identification within the American racial stratification system and as a form of assertive panethnic identity. This identity, however, does not supersede national identification, which remains the anchoring identity. 相似文献
93.
J. C. R. Alcantud G. Bosi M. J. Campión J. C. Candeal E. Induráin C. Rodríguez-Palmero 《Theory and Decision》2008,64(4):479-494
We present here a direct elementary construction of continuous utility functions on perfectly separable totally preordered
sets that does not make use of the well-known Debreu’s open gap lemma. This new construction leans on the concept of a separating
countable decreasing scale. Starting from a perfectly separable totally ordered structure, we give an explicit construction
of a separating countable decreasing scale, from which we show how to get a continuous utility map.
相似文献
94.
María del Carmen Boado-Penas Inmaculada Domínguez-Fabiá Carlos Vidal-Meliá 《International social security review》2007,60(4):105-127
The aim of this article is twofold: to demonstrate the actuarial imbalance in the Spanish pension system in its current form; and to measure the degree of aggregate economic risk to which pensioners are exposed when applying formulas for the calculation of retirement pensions based on notional accounts. The model used generates scenarios for various periods encompassing some 10,000 different permutations of the macroeconomic indices needed to calculate such parameters as initial pension, earnings replacement rate, or internal rate of return and value at risk. The findings are analysed both objectively and subjectively. The main conclusions are that if the projections for the macroeconomic indices used bear only a minimal resemblance to reality, the pension system will accumulate further financial imbalance in the future that will force it either to reduce initial pensions considerably or to make some radical adjustments to the parameters. In terms of risk, for beneficiaries with high risk aversion the preferred formulas would be those based on future variations in wages with a constant pension amount in real terms; on the other hand, those less averse to risk would prefer formulas that generate a smaller initial pension but one which grows in real terms with subsequent changes in wage levels. 相似文献
95.
96.
Carlos López 《Statistical Methods and Applications》1996,5(2):211-228
Summary The detection of errors and outliers is an important step in data processing, especially those errors arising from data entry
operations because they are of the entire responsability of the data processing staff. The duplicate performance method, is
commonly used as an attempt to detect such type of errors. It implies typically typing twice the same data without any special
precedence. If the errors are uniformly distributed among individuals, retyping a fraction of the total will also remove typically
the same fraction of the errors. A new method is presented, which is able to improve that procedure by sorting the records
putting first the most unlikely ones. The ability of the present methodology has been tested by a Monte Carlo simulation,
using an existing database of categorical answers of housing characteristics in Uruguay. At first, it has been randomly contaiminated,
and after that, the proposed procedure applied. The results show that if a partial retyping is done following the proposed
order about 50 % of the errors can be removed while keeping the retyping effort between 4 and 14% of the dataset, while to
attain a similar result with the standard methodology 50% (on, average) of the database should be processed. The new ordering
is based upon the unrotated Principal Component Analysis (PCA) transformation of the previously coded data. No special shape
of the multivariate distribution function is assumed or required. 相似文献
97.
Juan Carlos Candeal Esteban Induráin José Ramón Uriarte 《Social Choice and Welfare》1992,9(3):213-227
This paper deals with the topological approach to social choice theory initiated by Chichilnisky. We study several issues concerning the existence and uniqueness of Chichilnisky rules defined on preference spaces. We show that on topological vector spaces the only additive, anonymous, and unanimous aggregation n-rule is the convex mean. We study the case of infinite agents and show that an infinite Chichilnisky rule might be considered as the limit of rules for finitely many agents. Finally, we show that under some restrictions on the preference space, the existence of a Chichilnisky rule for every finite case implies the existence of a weak Chichilnisky rule for the infinite case. 相似文献
98.
D. Rodríguez-Ruiz J. M. García-Manso D. Rodríguez-Matoso S. Sarmiento M. Da Silva-Grigoletto R. Pisot 《European review of aging and physical activity》2013,10(2):127-132
This study aims to determine the normalized response speed (V rn) in vastus lateralis (VL) and biceps femoris (BF) muscles in different age groups using tensiomyography. Eighty-four male subjects were divided into four age groups: teenage subjects (T); undergraduate students (U), adult subjects (A), and the elderly group (E). Differences in V rn were observed between E and T (p?=?0.000), E and U (p?=?0.000), and E and A (p?=?0.018) for right VL and between E and T (p?<?0.000) and U (p?=?0.003) for left VL; between T and U (p?=?0.010) and A (p?=?0.000) for right VL, and A (p?=?0.004) for left VL. V rn in the BF displayed different behavior from that of the VL, increasing moderately or stabilizing and declining slightly in E, in right leg (p?=?0.020). The data obtained highlighted a decline in V rn for the VL in both legs with increasing age and, declines in BF response speed were observed only in E. 相似文献
99.
Mónica Guzmán-González Lusmenia Garrido Carlos Calderón Paula Contreras Diana Rivera 《Journal of divorce & remarriage》2017,58(2):96-109
The aim of this study was to determine the psychometric properties of a short version of the Fisher Divorce Adjustment Scale (FDAS–SF; Fisher, 1978) in the Chilean context. Participants were 260 individuals who were divorced or separated. The FDAS–SF included 22 of the original 100 items, and its factorial structure was evaluated using exploratory and confirmatory factor analysis. Instead of the 6 original subscales proposed by its author, the structure that showed the best fit to the data was composed of 5 subscales: self-worth, disentanglement from the ex-partner, anger, grief, and social trust. The social self-worth subscale was excluded. Reliability analyses revealed good internal consistency of the subscales and adequate convergent validity with depression, anxiety, stress, and life satisfaction. Given the psychometric properties of this short version, it can be concluded that the FDAS–SF can be used in the Chilean context to evaluate the adjustment to divorce and separation. 相似文献
100.
Taller populations are typically richer populations, and taller individuals live longer and earn more. In consequence, adult
height has recently become a focus in understanding the relationship between health and wealth. We investigate the childhood
determinants of population adult height, focusing on the respective roles of income and of disease. Across a range of European
countries and the United States, we find a strong inverse relationship between postneonatal (ages 1 month to 1 year) mortality,
interpreted as a measure of the disease and nutritional burden in childhood, and the mean height of those children as adults.
Consistent with these findings, we develop a model of selection and stunting in which the early-life burden of undernutrition
and disease not only is responsible for mortality in childhood but also leaves a residue of long-term health risks for survivors,
risks that express themselves in adult height and in late-life disease. The model predicts that at sufficiently high mortality
levels, selection can dominate scarring, leaving a taller population of survivors. We find evidence of this effect in the
poorest and highest-mortality countries of the world, supplementing recent findings on the effects of the Great Chinese Famine. 相似文献