Fast Policy - Jamie Peck e Nik Theodore

The Determination of Lactic Acid* by Theodore E. Friedemann

In previous papers (1, 2) the conditions for the oxidation of lactic acid to acetaldehyde, quantitatively, and the accurate determination of the latter, were described. It was found that the oxidation to acetaldehyde appears to depend upon factors such as the concentration of oxidizing agent added, the acidity of the solution, the concentration of MnS04, and probably also the amount of lactic a...

The Determination of Lactic Acid.* by Theodore E. Friedemann

Lactic acid is a substance of major significance throughout the orders of life, from microbe to man. Its relation to the carbohydrate metabolism has been very extensively st,udied; and it is not surprising, therefore, that many methods have been proposed for its quantitative estimation. Most of the methods depend upon the conversion of lactic acid into acetaldehyde (1, 2), the latter being dete...

Quotients of Peck Posets

An elementary, self-contained proof of a result of Pouzet and Rosenberg and of Harper is given. This result states that the quotient of certain posets (called unitary Peck) by a finite group of automorphisms retains some nice properties, including the Sperner property. Examples of unitary Peck posets are given, and the techniques developed here are used to prove a result of Lovhz on the edge-re...

Nik Brown

We are today wholly accustomed to being daily bombarded with (often competing) claims about the seemingly limitless potential and promise of transgenics, predictive medicine, reproductive science, bioinformatics and much else besides. Stories of new breakthroughs and advances mesh with ‘our’ culturally embedded sense of the steady march of enlightenment progress. Each announcement seems to inde...

Theodore William Richards