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21.
This work presents the results obtained from a genetic–population study for the D1S1656 system in the population of Southwest Spain (Huelva, Cádiz and Sevilla), Spaniards of Caucasian origin from North Africa (Ceuta), as well as in the black Central West African and Moroccan immigrant populations in Spain. The results of a study of the autochtonous population of the Canary Islands (n=138), and immigrant Central West African populations in Spain (n=132), obtained for nine short tandem repeat (STR) loci (D3S1358, VWA, FGA, D8S1179, D21S11, D18S51, D5S818, D13S317, D7S820), as well as the amelogenin locus, all contained in Profiler Plus™ (Perkin-Elmer) PCR amplification kits, are also presented. Except for the FGA and VWA data on immigrant Central West African populations in Spain, no deviations from the Hardy–Weinberg equilibrium were detected.  相似文献   
22.
It used to be thought that the utility or pleasure that goods gave consumers depended on the whole on the nature of the goods and, particularly, on its quantity. This is half true, half false. The utility obtained from a set of goods depends mainly on how the goods are ordered and combined within the dynamic time sequence represented by consumption. In other words, it depends less on what the goods are and more on how the goods are positioned. Understanding this offers huge possibilities within the theory of utility--and thus of consumption--as it allows us to apply the arsenal of tools available to us in the mathematic speciality known as combinatorics, as applied to utility. If each combination of goods poses a utility, we can rank these combinations differently using ordinal criteria and real transitive preferences. From there we can establish a set of menus, from best to least poor, and, armed with this information, work out a theory of individual choice. This is in brief the purpose of this work.  相似文献   
23.
The role of the public administration is crucial for the development of smart cities. Several scholars have highlighted the need for greater contributions focused on the relationship between public administration and smart cities. This work aims to map the contributions on the topic highlighting the status of the field in the recent years. A bibliometric analysis was performed on a sample of articles published in business and management journals. The analysis was carried out using the R-studio Bibliometrics package. Results show that research on the topic is still in an initial stage and has several gaps that future studies could fill. The study is useful for scholars because it identifies the topics analyzed by previous research and highlights future research questions that could be investigated. The analysis highlighted the areas studied by scholars on the topic: urban planning, sustainable development, governance approach, Internet of Things and information and communication technologies.  相似文献   
24.
Aerobic sport performance may be strongly influenced by the number of red blood cells available for transport and delivery of oxygen from lungs to muscles. Often, athletes search for an acute increase in red blood cells by means of blood transfusions. This paper reviews the possibilities for detecting such prohibited practice. Flow cytometry methods are able to detect a double population of red blood cell membrane surface antigens, thus revealing an allogeneic transfusion. Other ingenious approaches for total hemoglobin mass measurements or to test for the metabolites of blood bag plasticizers in urine are new trends for facing the detection of autologous transfusions. Steady increase of red blood cell number may be obtained also by erythropoietic stimulant agents such as erythropoietin, analogs and mimetics. The challenge of detecting those substances has stimulated the development of indirect markers of altered erythropoiesis, leading to the consequent development of the hematological blood passport approach, which is gaining legal acceptance.  相似文献   
25.
ABSTRACT

This article surveys an unpublished piece in which Friedrich Engels examined the ecological conditions of Ireland in a chapter entitled the “Natural Conditions” in his unfinished History of Ireland. In interpreting Engels’s findings dialectically we are able to explicate a dialectical framework that gives us a greater insight into how Engels understands the way in which the dialectics of nature enfold in a particular bioregion and how, crucially, those same organic processes of nature provide the necessary ecological conditions for society to engage in agricultural cultivation. The geological system of Ireland and its particular sieve-like structure moderate the climatic condition of excessive rainfall so that cultivation can continue. This investigation by Engels can be seen as a concrete case study into the dynamic metabolising relationships between the diverse organic processes of Nature as they are appropriated by society in agricultural production. The conceptual trajectory of this dialectical analysis is to emphasise the inherent fluidity, mutual interaction and “universal connection” of the forces of nature. This particular work of Engels’s is a significant contribution to our understanding not only of the dialectics of nature but also of the methodology of dialectics as such.  相似文献   
26.
Performance of likelihood ratio (LR) methods for evidence evaluation has been represented in the past using, for example, Tippett plots. We propose empirical cross‐entropy (ECE) plots as a metric of accuracy based on the statistical theory of proper scoring rules, interpretable as information given by the evidence according to information theory, which quantify calibration of LR values. We present results with a case example using a glass database from real casework, comparing performance with both Tippett and ECE plots. We conclude that ECE plots allow clearer comparisons of LR methods than previous metrics, allowing a theoretical criterion to determine whether a given method should be used for evidence evaluation or not, which is an improvement over Tippett plots. A set of recommendations for the use of the proposed methodology by practitioners is also given.  相似文献   
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Abstract

Although many historical accounts touch briefly upon the ubiquitous Mexican consulates, none to date have delved beyond superficial details of that presence, preferring instead to reconstruct Chicano political history as if it were an experience shaped by factors within the United States. This study reveals that the Mexican governments in the post‐1910 Revolutionary era implemented a strategy to influence the political culture and actions of the emigrant community in the US. An important part of that strategy contained measures to influence and develop an ethnic Mexican unionization movement along conservative lines. The compiled evidence leads to the conclusion that the Mexican community forged their experiences not only in terms of the conditions extant within the US, but that their home government followed them across the border seeking to assimilate them into the social relations and political culture of the emerging Mexican state. Mexico aimed at nothing less than developing a loyal and politically dependent emigrant community, a strategy that replicated Mexico's domestic social policy and complemented Roosevelt's New Deal labor objectives, while corresponding to the labor demands of large‐scale agricultural interests.  相似文献   
30.
This paper analyzed the existing literature on risk and protective factors for intimate partner violence among Hispanics using the four-level social-ecological model of prevention. Three popular search engines, PsycINFO, PubMed, and Google Scholar, were reviewed for original research articles published since the year 2000 that specifically examined factors associated with intimate partner violence (IPV) among Hispanics. Factors related to perpetration and victimization for both males and females were reviewed. Conflicting findings related to IPV risk and protective factors were noted; however, there were some key factors consistently shown to be related to violence in intimate relationships that can be targeted through prevention efforts. Future implications for ecologically-informed research, practice, and policy are discussed.  相似文献   
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