Dispersal of biota by humans is a hallmark of civilization, but the results are often unforeseen and sometimes costly. Like kudzu vine in the American South, some examples become the stuff of regional folklore. In recent decades, "invasion biology," conservation-motivated scientists and their allies have focused largely on the most negative outcomes and often promoted the perception that introduced species are monsters. However, cases of monstering by scientists preceded the rise of popular environmentalism. The story of tamarisk (Tamarix spp.), flowering (...) trees and shrubs imported to New England sometime before 1818, provides an example of scientific "monstering" and shows how slaying the monster, rather than allaying its impacts, became a goal in itself. Tamarisks' drought and salt tolerance suggested usefulness for both coastal and inland erosion control, and politicians as well as academic and agency scientists promoted planting them in the southern Great Plains and Southwest. But when erosion control efforts in Arizona, New Mexico and Texas became entangled with water shortages, economic development during the Depression and copper mining for national defense during World War Two, federal hydrologists moved quickly to recast tamarisks as water-wasting foreign monsters. Demonstrating significant water salvage was difficult and became subsidiary to focusing on ways to eradicate the plants, and a federal interagency effort devoted specifically to the latter purpose was organized and continued until it, in turn, conflicted with regional environmental concerns in the late 1960s. (shrink)

With the help of American friends, he revised the book and published it anew six years later. The present volume is the third version of the biography, completed in 1908 but never published in Salt's lifetime.

Nurses and midwives are part of health care in all the stages of our lives from preconception to death. Recent scientific advances have introduced new techniques of screening and diagnosis linked to stem cell isolation and therapies. These could affect us at any age and therefore nurses will be involved as carers and patients advocates for these techniques. In this article stem cell techniques and therapies are outlined, as well as some of the ethical challenges faced by various nursing groups, (...) whether in adult, learning difficulties, mental health, paediatric, primary care, public health or health visiting areas. Nurses have to understand the ethical issues and the rights of all parties (donor, recipient and families), which may conflict with each other, to be able to weigh up the benefits and costs to each group involved. Answers have to be found on a case-by-case basis within local moral frameworks and law. Nurses represent all parties in these therapies and act as advocates for every patient group. They need to act in an interprofessional environment to promote the best interests of all their clients, both clinically and ethically. (shrink)

We construct computably enumerable degrees a < b such that all computably enumerable degrees c with a < c < b isolate some d. c. e. degree d.

DNA methylation plays a role in the repression of gene expression in animal cells. In the mouse preimplantation embryo, most genes are unmethylated but a wave of de novo methylation prior to gastrulation generates a bimodal pattern characterized by unmethylated CpG island‐containing housekeeping genes and fully modified tissue‐specific genes. Demethylaton of individual genes then takes place during cell type specific differentiation, and this demodification may be a required step in the process of transcriptional activation. DNA modification is also involved in (...) the maintenance of gene repression on the inactive X chromosome in female somatic cells and the marking of parental alleles at genomically imprinted gene loci. (shrink)

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain (...) in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant. (shrink)

This paper examines the integration, from 1978 to 2002, of six social scientists in five Australian natural resource management agencies: CSIRO Australia, the Great Barrier Reef Marine Park Authority, the Murray Darling Basin Commission, the Western Australian Social Impact Unit, and the Queensland Social Impact Assessment Unit. All but one of the social scientists in the study occupied the first formal social science position in the respective agency. The organisational arrangements for integration, the roles of the social scientists and achievements (...) of social science programs in those agencies illustrate a number of integration approaches and insights for effectively integrating social and natural science. Insights emanating from this research will be useful to inform future natural resource management that avoids integration failures. This paper illustrates both significant impediments to integration in practice and positive examples of integrated multidisciplinary approaches in natural resource management. (shrink)

Wind turbines generate low-frequency sounds that affect the ear. The ear is superficially similar to a microphone, converting mechanical sound waves into electrical signals, but does this by complex physiologic processes. Serious misconceptions about low-frequency sound and the ear have resulted from a failure to consider in detail how the ear works. Although the cells that provide hearing are insensitive to infrasound, other sensory cells in the ear are much more sensitive, which can be demonstrated by electrical recordings. Responses to (...) infrasound reach the brain through pathways that do not involve conscious hearing but instead may produce sensations of fullness, pressure or tinnitus, or have no sensation. Activation of subconscious pathways by infrasound could disturb sleep. Based on our current knowledge of how the ear works, it is quite possible that low-frequency sounds at the levels generated by wind turbines could affect those living nearby. (shrink)

The following remarks are intended to show that some of Freudenthal's recent criticisms of Bunge'sFoundations of Physics are wide of the mark. Freudenthal sets his criticisms of detail in a framework of some general considerations of the role played by axiomatic theories in the foundations of physics. In particular, he considers the notion of the objects of an axiomatic theory, the relation of an axiomatic theory to reality, and the notion of the transformation group of a theory. These topics are (...) considered below. (shrink)

Background: Lack of compassion is claimed to result in poor and sometimes harmful nursing care. Developing strategies to encourage compassionate caring behaviours are important because there is evidence to suggest a connection between having a moral orientation such as compassion and resulting caring behaviour in practice. Objective: This study aimed to articulate a clearer understanding of compassionate caring via nurse educators’ selection and use of published texts and film. Methodology: This study employed discourse analysis. Participants and research context: A total (...) of 41 nurse educators working in universities in the United Kingdom (n = 3), Ireland (n = 1) and Canada (n = 1) completed questionnaires on the narratives that shaped their understanding of care and compassion. Findings: The desire to understand others and how to care compassionately characterised educators’ choices. Most narratives were examples of kindness and compassion. A total of 17 emphasised the importance of connecting with others as a central component of compassionate caring, 10 identified the burden of caring, 24 identified themes of abandonment and of failure to see the suffering person and 15 narratives showed a discourse of only showing compassion to those ‘deserving’ often understood as the suffering person doing enough to help themselves. Discussion: These findings are mostly consistent with work in moral philosophy emphasising the particular or context and perception or vision as well as the necessity of emotions. The narratives themselves are used by nurse educators to help explicate examples of caring and compassion (or its lack). Conclusion: To feel cared about people need to feel ‘visible’ as though they matter. Nurses need to be alert to problems that may arise if their ‘moral vision’ is influenced by ideas of desert and how much the patient is doing to help himself or herself. (shrink)

A research project by the Schools of Theology and Psychology of Australia’s Charles Sturt University surveyed a large sample of Salvation Army officers. This article considers survey responses to two questions relating to end-of-life care: the use of pain medications that may shorten life, and the cessation of fluid and food intake. The results of the analyses are evaluated in terms of Michael Banner’s proposal that moral theology should more assiduously converse with ‘patient ethnographic study’, which the survey instantiates to (...) some extent. Banner’s proposal and the results of the survey are contrasted to Peter Singer’s analytical moral philosophical dictums on end-of-life care. The results are also compared to a metastudy by Andrea Rodríguez-Prat and Evert van Leeuwen of 14 ethnographic studies of those who wish to hasten death at the end of life. We conclude that respondents exemplify a form of moral reasoning that is embedded within Christian spirituality; counters the assumptions of Singer’s approach; contrasts the diminishment of ‘meaning’ at the end of life, as seen in Rodríguez-Prat and van Leeuwen; and deserves further respectful ethnographic study. (shrink)

Resenha do livro de Sellars, Roy, e Allen, Graham (Orgs.). The Salt Companion to Harold Bloom . Cambridge: Salt, 2007. 505 páginas.

Despite much misunderstanding among modern readers and preachers, Jesus' saying in Matthew 5:13 (“You are the salt of the earth”) concerns sacrificing one's life to follow Christ. Moreover, this high cost of discipleship has cosmic significance.

In this paper I aim to show that a certain law of nature, namely that common salt (sodium chloride) dissolves in water, is metaphysically necessary. The importance of this result is that it conflicts with a widely shared intuition that the laws of nature (most if not all) are contingent. There have been debates over whether some laws, such as Newton’s second law, might be definitional of their key terms and hence necessary. But the law that salt dissolves (...) in water is not that kind of law. The law statement ‘salt dissolves in water’ is clearly synthetic. It appears a classic case of a contingent law. We like to believe that there are possible worlds in which the laws of nature are different and in which salt does not dissolve in water. (shrink)

What, precisely, is `salt'? It is a certainwhite, solid, crystalline, material, alsocalled sodium chloride. Does any of that solidwhite stuff exist in the sea? – Clearly not.One can make salt from sea water easily enough,but that fact does not establish thatsalt, as such, is present in brine. (Paper andink can be made into a novel – but no novelactually exists in a stack of blank paper witha vial of ink close by.) When salt dissolves inwater, what is (...) present is no longer `salt' butrather a collection of hydrated sodium cationsand chloride anions, neither of which isprecisely salt, nor is the collection. Theaqueous material in brine is also significantlydifferent from pure water. Salt may beconsidered to be present in seawater, but onlyin a more or less vague `potential' way.Actually, there is no salt in the sea. In bothancient and modern treatments of otherimportant chemical concepts, including thenotions of `element', related complication,especially polysemy (terms with multiplemeanings), also occurs.In a recent paper, Paul Needham discussed the(predicable) properties of chemical substances,phases, and solutions. He provided a valuablecharacterization of cases in which severalquantities occupy the same space. He alsoconcluded that solution properties are not`intensive', because solvent and solute do nothave parts in common. He tacitly assumed thatingredients are not altered by their inclusionin a solution. This may be the case in somespecial cases (deutero-benzene dissolved inbenzene, say) but is not true in general – andcertainly does not apply to the case of brine,which Needham used as an example – since theions that exist in the solution, and also theaqueous material there, are quite differentfrom the pure ingredients used in making thesolution. An adequate theory of wholes andparts (mereology) must take into account thatwhen individuals enter combinations ofinteresting sorts they no longer are the verysame individuals that existed prior to thecomposition. It appears that no such formaltheory now actually exists. (shrink)

This essay explores histories of common salt, sodium chloride, using concepts and methods from media theory. It contributes to research on media and environment and the general ‘material turn’ taken across the Humanities. I conceive of salt as what Peters calls an ‘elemental’ medium so as to show, first, the imbrication of naturally-occurring substances in the operations and supply chains of digital culture. Second, the many lives salt has lived materially, in techniques of survival and exchange, and (...) metaphorically, in cultural expression, complicate conventional understandings of media. In showing how salt performs three functions, processing, storage, and transfer, which Kittler ascribed to technical and symbolic media, I argue for a more expansive use of ‘mediation’ as a bridge concept that speaks to matters of nature and culture, Arts and Science, and to account for deep histories of extraction and economy that shape digital culture and global supply chains. (shrink)