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)

I argue that the picture theory provides both a common referential hase and a common logical syntax for languages embodying alternative conceptual schemes. I offer an analysis of depiction, explicating the Tractarian concepts of pictorial structure, pictorial relationship, and representational form. Significant failure of reference and the existence of languages with incompatible ontological commitments show that on the molar level depiction is not required for sense. Using three premises, taken to be axiomatic for Wittgenstein, I show that analysis leads to (...) a base of elementary propositions which must depict in order to be significant. There, the relations between pictorial structure, pictorial relationship and representational form are such that reference is secured and conceptual relativity precluded. (shrink)

Seven speeches on sufism. ʻAbd Allāh ibn Muḥammad ʻAyn al-Quḍāh al-Hamadhānī, -1131.

In this collection, distinguished theologians and philosophers of religion explore the relation of key Biblical concepts to our world. They examine a range of concepts, including authority, faith and history, the historical Jesus, the resurrection and miracles.

This case study of discussion-based teaching finds improvements in student concentration; scaffolding towards higher critical thinking; inclusion of non-traditional learning styles; and reduction of student absenteeism. However, this study did not find effective socialization in discussion-based disciplinary methods.

ABSTRACT While philosophers have highlighted important reasons to resist one’s own oppression, they tend to overlook the phenomenon of complacency about one’s own oppression. This article addresses this gap by arguing that some oppressed agents are obligated to resist complacency about their own oppression because failing to do so would significantly harm themselves and others. Complacent members of oppressed groups fail to resist meaningfully, are self-satisfied, and are epistemically culpable. I contend that focusing on the obligation to combat complacency is (...) useful for at least two reasons. First, complacency about one’s own oppression is a distinctive phenomenon that warrants separate philosophical attention. Second, focusing on the obligation to resist complacency helps analyze an undertheorized group of oppressed agents by challenging the binary understanding of power prevalent in the literature on the duty to resist, thereby sharpening philosophical accounts of resistance and filling a gap in a prominent well-being-based theory of resistance. (shrink)

This article investigates the idea that meanings of proper names are their references which is popular in the philosophy of language. The aim is to show, first, that there is no satisfactory answer to the question “How references as stable relations between words and objects appear, due to accomplishment of what conditions these properties of linguistic expressions may be produced?”, and, second, that we can still use the notion of reference in our explanations of some effects of communication if we (...) treat reference as pragmatic rather than semantic phenomenon. The actuality of this research is provided by the fact that the identification of meanings of certain types of terms, proper names first of all, with their references is still very influential account in the philosophy of language. The author uses the methods of historical exposition and philosophical analysis of the main theories of reference, such as theory of descriptions and causal theory of reference. It is shown that these theories in their different modifications fail to explain how references as semantic relations between proper names and their bearers may be produced in the course of communication and social interaction. But although there are alternative concepts of the nature meanings of proper names it is concluded that we still may apply the notion of reference in our explanations of natural language communication if we treat reference as pragmatic effect caused by mutual coordination of actions achieved by the participants of certain communicative situation. (shrink)

This article explains variations in misrecognition of domination among the racialized subaltern. I draw on a comparative analysis of the fields of Islam in France and India, informed by the work of Bourdieu and Fanon. I first argue that Bourdieu’s concept of the religious field provides a crucial reframing of the Islamic field whereby religious judgments represent classification struggles over legitimate Islam. Second, I approach misrecognition in the field by distinguishing the field’s discourse from its doxa. I argue that misrecognition (...) varies according to the degree of subaltern minority integration into educational institutions and proximity of the subaltern to the dominant classes. I bring in the work of Fanon, whose writings on the psychological effects of racial domination are a crucial complement to a Bourdieusian analysis. Together, they provide a more refined understanding of misrecognition in racialized religious fields and, in turn, potential for political resistance. (shrink)

As researchers interested in social aspects of sport, we enmesh ourselves in the work of memory, (re)membering and forms of ‘capturing’ sport and sport experiences. While nostalgia is at play in these social constructions of sport, for researchers we contend that the concept of nostalgia can prove devious. In this paper, we illustrate the social significance afforded to nostalgic experiences or events, and consider their representation in social sciences sport research. We develop and apply arguments concerning the senses, nostalgia, and (...) language in line with the ‘abilities’ view of concepts. The consequences of nostalgia can, we contend, be underplayed, taken for granted and/or ignored by sport researchers in ways that curtail more critical readings of sport phenomena. Our purpose is to interrogate the construction and a/effects of nostalgia as hidden/implicit/latent and heuristic. We advocate methodological critique that addresses the elusive, apparent, ‘capturable’ and confusing nature of nostalgia within sport research. (shrink)

In general it is found that the corporate managers and stockholders possess totally different view about good governance of a company. Managers strongly believe that governance of their companies is quite well but stockholders view that it is very poor. The study found that the groups differ in perception especially in terms of turnover, production, capital, leverage, debt service, credit policy, solvency, human resource, recruitment, technology, customer satisfaction, internal control, strength, opportunity, competition, industry position, collective bargaining agent (CBA) issues, and (...) economic remedies; whereas, they have similar view in terms of adequacy of research fund, company weaknesses and threats, contingency plans, presence of political influence. The managers think that the companies do not have enough retained earnings and these should not be distributed among stockholders, but the stockholders thinkotherwise. Managers always perceive that they are underpaid whereas stockholders express the opposite view. Each group believes that it is the other group that dominates the decision-making. Both the group wants to have mutual interaction but stockholders want to interact more than the mangers. The study noted that corporate managers’ tenure is more with the company than a stockholder’s holding of stock. The study also found that the managers are better educated than the stockholders. The study observed serious gender biasness both in management position and stockholding of the corporations. Though both the groups belong to same age level but their distribution shows stockholders enter into the share market at an early age. (shrink)

In his Trauerspiel study, Benjamin analyses the role of the baroque allegorist in an age in which his word is the expression of the melancholic gaze of an abandoned subject handed over to an absolute immanence. But the allegorist makes a move through which he achieves to go from immanence to God, allegorizing the concept of evil that he himself has produced. Even when he meets the characteristics of those allegorists, Baltasar Gracian does not make, in our judgement, this kind (...) of betrayal to his own logos, surrendering completely to the consequences of natural history, the immanence and the allegorical saying. (shrink)

This paper addresses the motivations behind farmers’ pesticide use in two regions of Bangladesh. The paper considers farmers’ knowledge of arthropods and their perceptions about pests and pest damage, and identifies why many farmers do not use recommended pest management practices. We propose that using the novel approach of classifying farmers according to their motivations and constraints rather than observed pesticide use can improve training approaches and increase farmers’ uptake and retention of more appropriate integrated pest management technologies.