A guide for scientists who would like to contribute to the professional development of science teachers for elementary schools. Based on information from over 180 programs, describes what activities work and why, and suggests how to identify programs teachers have found to be effective and take the initial steps to become involved. Also provides vignettes illustrating the daily work of science teachers. Annotation copyright by Book News, Inc., Portland, OR.

The role of paleontology in evolutionary biology between the publication of The Origin of Species in 1859 and the Evolutionary Synthesis of the 1940s is frequently described as mostly misguided failure. However, a significant number of American and British PDPS invertebrate paleontologists of this period did devote considerable attention to evolution, and their evolutionary theories and conclusions were a good deal more diverse and nuanced than previous histories have suggested. This paper brings into focus a number of important but underrecognized (...) aspects of the history of paleontology within the history of biology, including that PDPS paleontologists were not all as theoretically backward as they have been portrayed; that the post-Synthesis narrative of the history of evolution should be continually reevaluated, in part to decouple historical understanding from the agendas of authors who have used history to advance particular views of evolution; and that there is a much richer story to be told about the history of evolutionary biology in both the pre- and post-Synthesis eras. (shrink)

This text provides a straightforward, lively but rigorous, introduction to truth-functional and predicate logic, complete with lucid examples and incisive exercises, for which Warren Goldfarb is renowned.

In "primitive" cultures, dual symbolic classification systems draw rigid temporal and spatial boundaries between the sacred and the profane. The right and left hands are described as sacred and profane, respectively. Durkheim saw a weakening of these systems as an aspect of modernization. A weakening of such dichotomous reason is shown in two examples. First, Hertz's study of the suppression of the left hand among the Maori links the left hand to the right cerebral hemisphere of the brain. The further (...) inference he might have drawn, but did not, is that the right hemisphere and its pattern thinking might play a significant role in magic, sorcery, and witchcraft. The Maori physical confinement of the left hand is no longer practiced. Second, in the United States, Hugdahl et al. present data from eight one‐decade cohorts showing that the decrease in left‐handedness by age was countered by a corresponding increase in left‐to‐right hand switching. A lower life‐span by left handers might account for some of the change across age cohorts, but at least half of the decrease in manifest left‐handedness was accounted for by a gradual decrease in social pressure not to use the left hand. Implications for the moral solidarity of postmodern society are discussed. (shrink)

Farmer participatory approaches were used to identify problems and needs as perceived by local people and to develop strategies to achieve fodder security in south Indian villages. Indigenous knowledge systems as they relate to agroforestry were explored. The farmer participatory approaches have laid the foundations for selecting appropriate agroforestry technologies and developing suitable fodder security policy options. Potential benefits and risks as a result of implementing agroforestry projects were also discussed.

Farmers in developed countries have established various tillage practices for crop production. These include plowing, disking, subsoiling, harrowing, field cultivating, rotary hoeing, and row-crop cultivating. But these conventional tillage practices necessitate the use of heavy equipment that often causes soil compaction, impairs soil physical conditions, and creates conditions leading to soil erosion. Many Western countries, studying their conventional tillage systems through the new perspective of sustainable approaches to agriculture, are developing new tillage practices, called conservation tillage, which limit tillage to (...) essential operations and prevent damage to soil. The majority of the small-scale farmers in developing countries use indigenous tillage systems. These are low-cost, locally adapted technologies that reflect considerable knowledge of sustainable agriculture. Ironically, the new conservation tillage systems currently being developed in the West have many characteristics of indigenous tillage systems. This paper compares conventional, conservation, and indigenous tillage practices, using examples from the United States and India, and concludes that, for sustainable food production, indigenous tillage practices in developing countries should continue to be used. (shrink)

This paper deals mainly with generalizations of results in finitary combinatorics to infinite ordinals. It is well-known that for finite ordinals ∑bT<αβ is the number of 2-element subsets of an α-element set. It is shown here that for any well-ordered set of arbitrary infinite order type α, ∑bT<αβ is the ordinal of the set M of 2-element subsets, where M is ordered in some natural way. The result is then extended to evaluating the ordinal of the set of all n-element (...) subsets for each natural number n ≥ 2. Moreover, series ∑β<αf are investigated and evaluated, where α is a limit ordinal and the function f belongs to a certain class of functions containing polynomials with natural number coefficients. The tools developed for this result can be extended to cover all infinite α, but the case of finite α appears to be quite problematic. (shrink)

This book includes a selection of contributions to the Iowa State University Symposium on agricultural bioethics in november 1987. The papers are grouped in the sections "Safety and regulatory issues", "Impact on scientific and industrial communities", "Public perceptions", "Economic prospects", "Social considerations" and "Ethical dilemmas".

This teaching case focuses on Diversity, Equity, and Inclusion (DEI) at a museum. At the beginning of 2021, the organization found itself in a crisis when more than 2,000 community members and 85 anonymous employees demanded the resignation of the museum’s President due to the language he defended in a job posting advocating for a job applicant to diversify audiences while “maintaining the traditional white core audience of the museum” (Salaz 2021). Students take on the role of an external consultant (...) to assess DEI maturity at the museum. The case challenges students to propose implementation and impact metrics for a DEI action plan. The case facts provide a timely and relevant setting to discuss DEI challenges in not-for-profit organizations. (shrink)