The regional principle of socioeconomic and political development has always served as the basis of the existence of developed states. The rights of regions have been severely curtailed only in countries with a totalitarian system of government.

The interaction between philosophy and political parties is one of the most lively questions in the discipline of the history of philosophy and in the battle of ideas today. It affects both specialists in philosophy and representatives of other professions, particularly in the broad realm of creative intellectuals. It excites people of different generations living under different social systems and belonging to different and often opposed classes.

Lead (Pb) contamination of the environment is an important human health problem. Children are vulnerable to Pb toxicity; it causes damage to the central nervous system and, in some extreme cases, can cause death. Lead is widespread, especially in the urban environment, and is present in the atmosphere, soil, water and food. Pb tends to accumulate in surface soil because of its low solubility, mobility, and relative freedom from microbial degradation of this element in the soil. Lead is present in (...) soil as a result to weathering and other pedogenic processes acting on the soil parent material; or from pollution arising caused by the anthropogenic activities; such as mining, smelting and waste disposal; or through the adoption of the unsafe and unethical agricultural practices such as using of sewage sludge, and waste water in production of vegetable crops or cultivation of vegetables near highways and industry regions. Lead concentrations are generally higher in the leafy vegetables than the other vegetables. Factors affecting lead uptake included its concentration in the soil, soil pH, soil type, organic matter content, plant species, and unsafe agriculture practices. Generally, as Pb concentration increased; dry matter yields of roots, stems and leaves as well as total yield decreased. The mechanism of growth inhibition by lead involve: a decrease in number of dividing cells, a reduction on chlorophyll synthesis, induced water stress to plants, and decreased NO 3 - uptake, reduced nitrate and nitrite reductase activity, a direct effect of lead on protein synthesis, a decrease on the uptake and concentration of nutrients in plants. The strategies to minimize Pb hazard can be represented in: (a) Phytoremediation, through natural plants are able to bio-accumulate Pb in their above–ground parts, which are then harvested for removal such as, using Indian Mustard (Brassica juncea), Ragweed (Ambrosia artemisiifolia), Hemp Dogbane (Apocynum cannabium), or Poplar trees, which sequester lead in its biomass. (b) Good and ethical agricultural practices such as cultivation of vegetables crops as far from busy streets or highways and industry regions as well as nonuse of sewage sludge and waste water in cultivated soils. (c) Increasing the absorptive capacity of the soil by adding organic matter and humic acid. (d) Growing vegetable crops and cultivars with a low potential to accumulate lead, especially in soils exposed to atmospheric pollution. (e) Washing of leafy vegetables by water containing 1 % vinegar or peeling roots, tubers, and some fruits of vegetables before consumption may be an important factor in reducing the lead concentration. (shrink)

The problem considered in the article that follows has a long and complicated history. The many different solutions proposed reflect the process of development, deepening, and broadening of knowledge as a whole. They correspond to particular levels of knowledge, determining the character of thought both of the times and of particular individuals. Specifically, it is the understanding of the essence of contradiction that governs the entire theoretical exposition that follows, its substance and approximation to truth. Here we shall consider for (...) analysis only one aspect of this fundamental theme — dialectical contradiction in the evolution of knowledge. Thus, for the most part the discussion will be of the laws of thought; only when necessary will we turn to analysis of contradictions in the objective world. It is quite understandable that the process of thought should occur according to the same, more general laws that are operative in the objective world; nevertheless, the manifestation of these laws has its own special features. Therefore, the questions posed by philosophers of antiquity concerning the degree to which reality itself corresponds to the understanding thereof in terms of the exactness, comprehensiveness, and depth of reflection of the objective world by a subject have not lost their timeliness. Such questions include those associated with the phenomenon of contradiction. For example, is contradiction in thought adequate to the contradictions among things ? How does contradiction in thought take shape, and what are its forms and structures? Is the relationship between opposites always a contradiction? Is it possible to solve antinomies, and so forth? An extensive literature has been published on these subjects. There is hardly a philosopher who can avoid them and not express his attitude toward them. As it is impossible, within the confines of an article, to adduce a full list of published works on contradictions, the authors, with an eye to what has been achieved in this sphere, also regard it as undesirable to analyze the diversity of points of view, and will confine themselves to presenting their own understanding of the problem under consideration. (shrink)

Good and evil; religious aspects; Islam.

Islamic ethics and Koranic teaching, aspects of Islam.

The study of the motion of the magnetic top—a classical spherical top which carries magnetic moment proportional to its angular momentum, is motivated and inspired by the quantum mechanical relation between spin angular momentum and spin magnetic moment. Inversely, the magnetic top, taken to be the classical model of quantum spin, implies the description of spin states by probability amplitudes of the top orientation angles, instead of by Pauli spinors. This opens new possibilities for the interpretation of many interesting spin (...) experiments which serve as tests of basic principles of quantum mechanics and of the postulates of the quantum theory of measurement. (shrink)

El artículo presenta una reflexión sobre la manera en que en los últimos veinte años la promoción de un determinado tipo de solidaridad en Chile ha contribuido a la conformación de una gubernamentalidad liberal avanzada, necesaria para la instalación de un programa neoliberal. La reflexión se enmarca en los aportes teóricos de Michel Foucault y tiene por objeto empírico piezas de publicidad de promoción de la solidaridad emitidas en Chile entre los años 2009 y 2010, que han sido analizadas en (...) el contexto del proyecto Fondecyt 1090534. Se presentan tres tipos de resultados: (a) se describen los sectores sociales que se construyen como agentes de la solidaridad, (b) se reflexiona sobre las prácticas solidarias más promovidas y (c) se indaga en la forma en que se interpela a los sujetos a ser solidarios. (shrink)

This research aims at investigating some specific metaphorical applications of the concept of causality in Suhrawardi's philosophy, basically referring to the theory of conceptual metaphor. Hitherto, two traditional and contemporary theories have been discussed in this regard. Regarding the traditional theory represented by Aristotle Metaphor, it can be regarded as the use of the name of something for something else. According to this view, the reason why one word is used instead of another is a pre-existing and objective similarity between (...) the two phenomena. Contemporary metaphor theory holds that, in addition to objective similarity, non-objective similarities, the creation of similarities by the mind and the correlation in experience are bases for the formation of metaphors. In Suhrawardi's philosophy, causality has been conceptualized as a key philosophical concept with the help of various metaphors. (shrink)