Mathematical modeling is a convenient way for characterization of complex ecosystems. This approach was applied to study the dynamics of zooplankton in Lake Sevan (Armenia) at different stages of anthropogenic eutrophication with the use of a novel method called discrete modeling of dynamical systems with feedback (DMDS). Simulation demonstrated that the application of this method helps in characterization of inter- and intra-component relationships in a natural ecosystem. This method describes all possible pairwise inter-component relationships like “plus–plus,” “minus–minus,” “plus–minus,” “plus–zero,” “minus–zero,” (...) and “zero–zero” that occur in most ecosystems. Based on the results, a working hypothesis was formulated. It was found that the sensitivity to weak external influence in zooplanktons was the greatest during the mid period of eutrophication in Lake Sevan, whereas in the final stages of eutrophication, an outbreak in the biomass production of cyanobacteria was evident. To support this approach, a weak external disturbance in the form of magnetic storm was used to see its effect on species Daphnia longispina sevanica. A statistically significant correlation between the frequency of magnetic storms and the number of this species was revealed and an increase in the number of toxic cyanobacteria species as a consequence of eutrophication. This paper, for the first time, suggests a DMDS method, to diagnose impact of anthropogenic eutrophication on environment. (shrink)

The state-of-art research in the field of life’s organization confronts the need to investigate a number of interacting components, their properties and conditions of sustainable behaviour within a natural system. In biology, ecology and life sciences, the performance of such stable system is usually related to homeostasis, a property of the system to actively regulate its state within a certain allowable limits. In our previous work, we proposed a deterministic model for systems’ homeostasis. The model was based on dynamical system’s (...) theory and pairwise relationships of competition, amensalism and antagonism taken from theoretical biology and ecology. However, the present paper proposes a different dimension to our previous results based on the same model. In this paper, we introduce the influence of inter-component relationships in a system, wherein the impact is characterized by direction (neutral, positive, or negative) as well as its (absolute) value, or strength. This makes the model stochastic which, in our opinion, is more consistent with real-world elements affected by various random factors. The case study includes two examples from areas of hydrobiology and medicine. The models acquired for these cases enabled us to propose a convincing explanation for corresponding phenomena identified by different types of natural systems. (shrink)

The relevance of the research is due to the interest of modern science in the successful experience of comprehending social reality and of social forecasting in forms nontrivial for systematic rational thinking. T topic is especially important in the context of global instability, in which human civilization has been living for the last decades. The main question is the possible existence of a critical philosophy in terms of the ideological pressure of the Soviet period. The author substantiates the hypothesis that (...) children’s literature could be a form of free development of philosophical thinking, permissible in these circumstances. The research is of practical value to humanities scholars studying Soviet and post-Soviet period Russian culture, literature, philosophy, regardless of their theoretical and ideological orientations, since it examines the philosophical aspects in the works by the Soviet children’s writer Nikolai Nosov, author of trilogy about Dunno (rus. Neznajka), and not well-known abroad. The article justifies the opinion that Nosov’s creative heritage is underestimated both in Russian and foreign humanities and not sufficiently analyzed. Through the analysis of N. Nosov’s texts, undertaken by Russian and foreign scholars and publicists (among which L. Abdel-Rahim and L. Karawan deserve a special mention), implicit social and philosophical ideas are revealed, and the basic social forecasting is determined in relation to the society of ‘developed socialism’. Marxist philosophy had a significant impact on N. Nosov’s worldview; however, the writer is alien to the ideological blinders of the dominant forms of Soviet philosophy. Nosov’s Marxism in the form of popular ‘children’s’ discourse suddenly finds itself able to effectively implement critical and prognostic function of philosophy. Being decades ahead of Soviet ideologists and philosophers in this respect, N. Nosov convincingly showed the problem nature of ‘developed socialism’. An important diagnosis of this society and a forecast for its future is possible ‘breakdown’ of the historical process (despite scientific and technical achievements) due to the insufficient level of culture and consciousness, the immaturity of social relations. (shrink)

Classical work on Hindu cosmology by Huccaṇṇa, 16th century Kannada author.

I develop and test a multilevel trust-based model of ethical public leadership, which links ethical leadership, trust and leadership outcomes both within and across organizational levels. I examine how both ethical leadership and trust relate to employee well-being and satisfaction, group organizational citizenship behaviour and perceived organizational performance. The findings, based on data collected from an online quantitative survey conducted in three local councils of the north east of England, provide evidence in support of positive relationships between ethical leadership and (...) employees’ trust in leaders at multiple levels. This trust is in turn shown to influence employees’ attitudes, behaviours and cognitions. (shrink)

Author's answers to questions on Buddhist philosophy, posed to him by some foreign scholars.

Philosophical aspects of belief and ancestor worship in Southern Vietnam.

History of civilization and human nature of Vietnam.

OBJECTIVES: Life-sustaining treatment at the end of life gives rise to many ethical problems in Japan. Recent surveys of Japanese physicians suggested that they tend to treat terminally ill patients aggressively. We studied why Japanese physicians were reluctant to withhold or withdraw life-support from terminally ill patients and what affected their decisions. DESIGN AND PARTICIPANTS: A qualitative study design was employed, using a focus group interview with seven physicians, to gain an in-depth understanding of attitudes and rationales in Japan regarding (...) medical care at the end of life. RESULTS: Analysis revealed that physicians and patients' family members usually make decisions about life-sustaining treatment, while the patients' wishes are unavailable or not taken into account. Both physicians and family members tend to consider withholding or withdrawing life-sustaining treatment as abandonment or even killing. The strongest reason to start cardiopulmonary resuscitation- and to continue it until patients' family members arrive-seems to be the family members' desire to be at the bedside at the time of death. All physicians participating in our study regarded advance directives that provide information as to patients' wishes about life-sustaining treatment desirable. All expressed concern, however, that it would be difficult to forego or discontinue life-support based on a patient's advance directive, particularly when the patient's family opposed the directive. CONCLUSION: Our group interview suggested several possible barriers to death with dignity and the appropriate use of advance directives in Japan. Further qualitative and quantitative research in this regard is needed. (shrink)

Ṣadr, Muḥammad Bāqir; Islamic philosophy; 20th century.