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Biomedical subjects

L S Cahill

Publications and source records attributed to L S Cahill.

At least 19 recordsLinked to original sources
PubMed2006

(7)Li NMR and two-dimensional exchange study of lithium dynamics in monoclinic Li(3)V(2)(PO(4))(3).

High-resolution solid-state (7)Li NMR was used to characterize the structure and dynamics of lithium ion transport in monoclinic Li(3)V(2)(PO(4))(3). Under fast magic-angle spinning (MAS) conditions (25 kHz), three resonances are clearly resolved and assigned to the three unique crystallographic sites. This assignment is based on the Fermi-contact delocalization interaction between the unpaired d-electrons at the vanadium centers and the lithium ions. One-dimensional variable-temperature NMR and two-dimensional exchange spectroscopy (EXSY) are used to probe Li mobility between the three sites. Very fast exchange, on the microsecond time scale, was observed for the Li hopping processes. Activation energies are determined and correlated to structural properties including interatomic Li distances and Li-O bottleneck sizes.

Journal Article↗
PubMed2001

Using Augustine in contemporary sexual ethics. A response to Gilbert Meilaender.

In response to Gilbert Meilaender's innovative interpretation of Augustine and of Roman Catholic teaching, the author suggests (1) that Meilaender attributes to Augustine a more positive view of sexual pleasure than the texts will support, (2) that modern Roman Catholic teaching suggests that love should have priority over procreation as a meaning of sex; and (3) that the moral logic of Meilaender's argument does not require a rejection of all reproductive technologies. Nonetheless, the author agrees that a more critical attitude should be adopted toward the reasons for which technologically assisted reproduction is promoted and undertaken, as well as toward its social impact.

Catholicism↗
PubMed2001

Genetics, commodification, and social justice in the globalization era.

The commercialization of biotechnology, especially research and development by transnational pharmaceutical companies, is already excessive and is increasingly dangerous to distributive justice, human rights, and access of marginal populations to basic human goods. Focusing on gene patenting, this article employs the work of Margaret Jane Radin and others to argue that gene patenting ought to be more highly regulated and that it ought to be regulated with international participation and in view of concerns about solidarity and the common good. The mode of argument called for on this issue is more pragmatic than logical, emphasizing persuasion based on evidence about the reality and effects of control of genetic research by profit-driven biotech companies.

Biotechnology↗
PubMed1999

No human cloning: a social ethics perspective.

This Essay addresses the negative impact of human cloning on the family, and argues further that market incentives to develop and implement cloning techniques exploit and exacerbate socioeconomic inequities. It suggests that cloning should be prohibited internationally and examines possible routes to that aim. To begin with, it offers some reflections on the nature of moral argument, and on the role of religion in public debate.

Child↗
PubMed1989

Moral traditions, ethical language, and reproductive technologies.

The Vatican Instruction on reproductive technologies and the OTA report, Infertility, both use "rights" language to advance quite different views of the same subject matter. The former focuses on the rights and welfare of the embryo, and the protection of the family, while the latter stresses the freedom and rights of couples. This essay uses the work of Alasdair MacIntyre and Jeffrey Stout to consider the different traditions grounding these definitions of rights. It is proposed that a potentially effective mediating language could be that of "human nature", and argued that donor methods raise more serious moral objections than homologous ones.

Catholicism↗
PubMedDate not supplied

Social ethics of embryo and stem cell research.

United States debates over stem cell research too often take the status of the embryo as the only decisive ethical issue, assume that if the embryo cannot be shown to be a person its destruction for a good cause is justified, and are insufficiently critical of economic incentives to legitimate and fund such research. Even if stem cell research ought not be banned, it could be situated and controlled on a spectrum of other health care needs through limited funding policies; aggressive peer review; regulatory and legal oversight applying to all research, however funded; and stringent patenting criteria.

Biotechnology↗