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Biology and Medicine

Biology and Medicine

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An Introduction

Systems techniques are integral to current research in molecular cell biology, and system-level investigations are often accompanied by mathematical models. These models serve as working hypotheses: they help us to understand and predict the behavior of complex systems. This book offers an introduction to mathematical concepts and techniques needed for the construction and interpretation of models in molecular systems biology.

Politics, Policy, and Ethics

New findings in neuroscience have given us unprecedented knowledge about the workings of the brain. Innovative research—much of it based on neuroimaging results—suggests not only treatments for neural disorders but also the possibility of increasingly precise and effective ways to predict, modify, and control behavior. In this book, Robert Blank examines the complex ethical and policy issues raised by our new capabilities of intervention in the brain.

Thanks to advances in molecular science and microscopy, we can visualize matter on a nanoscale, and structures not visible to the naked eye can be visualized and characterized. The fact that technology allows us to transcend the limits of natural perception and see what was previously unseeable creates a new dimension of aesthetic experience and practice: molecular aesthetics. This book, drawing on an exhibit and symposium at ZKM | Center for Art and Media Karlsruhe, documents aesthetic developments in what Félix Guattari called the “molecular revolution.”

This collection reports on the latest research on an increasingly pivotal issue for evolutionary biology: cooperation. The chapters are written from a variety of disciplinary perspectives and utilize research tools that range from empirical survey to conceptual modeling, reflecting the rich diversity of work in the field. They explore a wide taxonomic range, concentrating on bacteria, social insects, and, especially, humans.

News stories report almost daily that scientists have linked a certain gene to a disease like Alzheimer’s or macular degeneration, or to a condition like depression or autism, or to a trait like aggressiveness or anxiety. Accompanying this remarkable progress in unraveling the genetic basis of disease and behavior are new technologies that are rapidly reducing the cost of reading someone’s personal DNA (all six billion letters of it). Within the next ten years, hospitals may present parents with their newborn’s complete DNA code along with her footprints and APGAR score.

How do we make decisions? Conventional decision theory tells us only which behavioral choices we ought to make if we follow certain axioms. In real life, however, our choices are governed by cognitive mechanisms shaped over evolutionary time through the process of natural selection. Evolution has created strong biases in how and when we process information, and it is these evolved cognitive building blocks--from signal detection and memory to individual and social learning--that provide the foundation for our choices.

A Life in Bioethics

Daniel Callahan helped invent the field of bioethics more than forty years ago when he decided to use his training in philosophy to grapple with ethical problems in biology and medicine. Disenchanted with academic philosophy because of its analytical bent and distance from the concerns of real life, Callahan found the ethical issues raised by the rapid medical advances of the 1960s--which included the birth control pill, heart transplants, and new capacities to keep very sick people alive--to be philosophical questions with immediate real-world relevance.

The New Language of Global Ethics and Biolaw

“Human dignity” has been enshrined in international agreements and national constitutions as a fundamental human right. The World Medical Association calls on physicians to respect human dignity and to discharge their duties with dignity. And yet human dignity is a term--like love, hope, and justice--that is intuitively grasped but never clearly defined. Some ethicists and bioethicists dismiss it; other thinkers point to its use in the service of particular ideologies.

Parents routinely turn to prenatal testing to screen for genetic or chromosomal disorders or to learn their child’s sex. What if they could use similar prenatal interventions to learn (or change) their child’s sexual orientation? Bioethicists have debated the moral implications of this still-hypothetical possibility for several decades. Some commentators fear that any scientific efforts to understand the origins of homosexuality could mean the end of gay and lesbian people, if parents shy away from having homosexual children.

When Bioethics Stole Medicine

Bioethics emerged in the 1960s from a conviction that physicians and researchers needed the guidance of philosophers in handling the issues raised by technological advances in medicine. It blossomed as a response to the perceived doctor-knows-best paternalism of the traditional medical ethic and today plays a critical role in health policies and treatment decisions. Bioethics claimed to offer a set of generally applicable, universally accepted guidelines that would simplify complex situations.

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