What is the green movement? -- How has the green movement influenced environmental policies? -- Do the benefits of going green outweigh the costs? -- What is the future of the green movement?

As cells approach S phase, many changes occur to create an environment conducive for DNA synthesis and commitment to cell division. The transcription rate of many genes encoding enzymes involved in DNA synthesis, including the dihydrofolate reductase (dhfr) gene, increases at the G1/S boundary of the cell cycle. Although a number of transcription factors interact to finely tune the levels of dhfr RNA produced, two families of transcription factors, Sp1 and E2F, play central roles in modulating dhfr levels. A region (...) containing several Sp1‐binding sites is required for both regulated and basal transcription levels. In contrast, the E2F‐binding sites near the transcription start site are required only for regulated transcription. A model is presented for the regulation of the dhfr gene which may also pertain to other cell cycle‐associated genes. (shrink)

This article extends Lemieux’s concern for the interdisciplinary tension between philosophy and sociology to the intradisciplinary tension within psychology between approaches to the study of children focusing on universal principles and approaches adopting a contextual lens. This tension arises both in how development is defined and in the methods chosen for its study. This tension is exemplified in terms of the recent American preoccupation with the Word Gap (WG), a supposed difference of 30 million words heard by socioeconomically diverse children (...) by the age of 4 that is blamed for educational disparities throughout the school years. The article discusses the political implications of WG discourse as it gives rise to the erasure of language practices of diverse Americans and obscures the role that the educational system plays in fostering a ‘one-size-fits-all’ instructional model. The article concludes with a discussion of attempts to combat the deficit model that the WG discourse reproduces. (shrink)

Four classes of naturally rare vascular plant species are described and classified, based on parameters of spatial distribution and longevity. Properties intrinsic to these time/space parameters are explored and an importance hierarchy of causes of rarity is proposed for each class. These hierarchies serve as the basis for a predictive classification. Human causes of rarity such as habitat destruction and taxonomic difficulties are not considered in detail here but are discussed as confounding factors in the elucidation of rarity in vascular (...) plants. Several examples are provided to illustrate this classification and provide testable hypotheses concerning the origins of natural rarity in plant species. (shrink)

An exploratory survey was conducted to determine if there are differences in ethical decisions by business students based upon cultural backgrounds. Students' responses to a vignette concerning advertising of cigar products in a variety of different media provided evidence of significant cultural differences between three groups of students from different geographical locations within the United States. This article suggests that the presumption that an individuals ethical beliefs and behaviors do not change after childhood may be in error.

This volume is devoted St. Thomas's commentary on the Physics. In the Physics, Aristotle delves into what makes things what they are. In commenting on this fundamental text of Aristotelian philosophy, St. Thomas takes Aristotle's thoughts and deepens them.

Much of the material found herein originally appeared in The concept of matter, edited by E. McMullin, which consisted of rev. papers from a conference held at the University of Notre Dame, Sept. 5-9, 1961. Includes bibliographical references and index.

Giordano Bruno's notorious public death in 1600, at the hands of the Inquisition in Rome, marked the transition from Renaissance philosophy to the Scientific Revolution of the seventeenth century. In his philosophical works he addressed such delicate issues as the role of Christ as mediator and the distinction, in human beings, between soul and matter. This volume presents new translations of Cause, Principle and Unity, in which he challenges Aristotelian accounts of causality and spells out the implications of Copernicanism for (...) a new theory of an infinite universe, and of two essays on magic, On Magic and A General Account of Bonding, in which he interprets earlier theories about magical events in the light of the unusual powers of natural phenomena. (shrink)

Giordano Bruno's notorious public death in 1600, at the hands of the Inquisition in Rome, marked the transition from Renaissance philosophy to the Scientific Revolution of the seventeenth century. In his philosophical works he addressed such delicate issues as the role of Christ as mediator and the distinction, in human beings, between soul and matter. This volume presents new translations of Cause, Principle and Unity, in which he challenges Aristotelian accounts of causality and spells out the implications of Copernicanism for (...) a new theory of an infinite universe, and of two essays on magic, On Magic and A General Account of Bonding, in which he interprets earlier theories about magical events in the light of the unusual powers of natural phenomena. (shrink)