ELL conjugation in Escherichia coli permits the oriented transfer of a specific linear array of genetic determinants from an Hfr, or male, donor cell to an F-, or female, recipient cell (WOLLMAN and JACOB 1955). The sequence of marker, transfer may vary from one Hfr type to another; moreover, any single Hfr type is capable of transferring only a fractional part of its entire genetic complement ...

The Pragmatics of Adaptability by Daniel N. Silva & Jacob L. MeyJohn Benjamins Publishing Company

More than 300 years ago, in a fertile period from 1684 to 1689, Jacob Bernoulli worked out a strategy for applying the mathematics of games of chance to the domain of probability. That strategy came into public view in August 1705, eight years after Jacob's death at the age of 50, when his masterpiece, Ars Conjectandi., was published. Unfortunately, the message of Ars Conjectandi was not fully ...

In his essay "Evolution and Tinkering," published in Science in 1977, François Jacob argues that a common analogy between the process of evolution [4] by natural selection [5] and the methods of engineering is problematic. Instead, he proposes to describe the process of evolution [4] with the concept of bricolage (tinkering). In this essay, Jacob does not deny the importance of the mechanism of...

and call functions Figure 5. Field calculus is a minimal syntax and semantics for construction of aggregate programs with a coherent mapping from aggregate syntax to local syntax. (Online version in colour.) 4. Foundation: field calculus Field calculus [19] provides a theoretical foundation for aggregate programming, grounding on the idea of computing by functional manipulation of computational...

© 2006 FRILOT PARTRIDGE, LC WWW.FRILOTPARTRIDGE.COM 504.599.8000 The modern scientifi c thinking on Creutzfeldt-Jakob Disease (CJD) began with the study of the primitive Fore tribe (pronounced 4-a) in eastern New Guinea. There had long been a strange neurologic disease in the cannibalistic jungle tribe. Some of the Fore people, primarily the women and children, began to have diffi culty walking...

Recently, the “mad cow” scare has put diseases caused by prions on the front page. These diseases share a common link to a protein naturally produced by the cells of human beings as well as numerous vertebrate animals. PrP is a small protein – around a hundred times smaller than the smallest virus – and invisible to even the best electron microscope. The largest quantities of this protein are m...

BACKGROUND Creutzfeld-Jacob disease (CJD) is a rare, progressive disease that has a vast clinical manifestation range. Cranial magnetic resonance imaging (MRI), electroencephalography (EEG), and measurement of 14-3-3 in cerebrospinal fluid (CSF) may offer a pragmatic approach in the diagnosis of CJD as an alternative to histopathological confirmation. PURPOSE To present the symptoms and signs...