This year marks the 350th anniversary of the launch of Philosophical Transactions of the Royal Society—the world's first scientific journal. This innovative way of recording the Royal Society's business proved to be a model for scientific publishing as we now know it. It provided a means of reviewing scientific discovery, recording it, and most importantly provided a means for disseminating the...

Die Workshops Software-Reengineering (WSR) im Physikzentrum Bad Honnef wurden mit dem ersten WSR 1999 von Jürgen Ebert und Franz Lehner ins Leben gerufen, um neben den internationalen erfolgreichen Tagungen im Bereich Reengineering auch ein deutsch-sprachiges Diskussionsforum zu schaffen. Ziel der Treffen ist es, einander kennen zu lernen und auf diesem Wege eine direkte Basis der Kooperation z...

the blood of ducks that had been fed a poisonous weed Traditionally, living things were distinguished from inanimate objects like rocks by their motility and growth, to protect himself against poisoning by his enemies. more than by an ability to reproduce. Emphasis on repro-Today, a potion made from poison oak is available at ductive continuity arose only in the 17 th century when homeopathic p...

Following the trend of mass customization, repro-graphic machines (photocopiers, printers, fax machines, etc.) are increasingly designed and assembled from standard components. For example, a system engineer may design a paper path for a new print engine conngu-ration from components such as sheet transports, sheet inverters, gates, registration units, and trays. Similarly, customers may choose...

To the Editor: Arterial stiffness is an independent predictor of cardiovascular morbidity and mortality. 1 It should come as no surprise that researchers are currently looking for measures of arterial stiffness that are easy to record even under ambulatory conditions. In this Journal, Gosse and colleagues 2 recently compared three indexes, derived from individual ambulatory blood pressure (BP) ...

Some factors influencing absorption rates of the digestion products of protein and carbohydrate from the proximal jejunum of man and their possible nutritional implications Ideal requirements of dietary energy (calories) and protein and its amino-acid ratio are difficult to determine'. At least one essential ingredient is frequently present in an inadequate concentration in the diet of a vast p...

This paper is a discussion of The Churchill School, founded in 1972 as an alternative approach to serving the educatiOnal needs of children diagnosed as hyperactive, hyperkinetic, brain damaged, neurologically impaired, or suffering from minimal brain dysfunction. The school has a student body of 65, ranging between 6 and 13 years of age. The educational program attempts to be holistic in natur...

Vitamin D deficiency has an impact on the reproduction of more than 40% of repro‐ ductive age women globally. Fibroids are more common among African‐American females owing to their decreased milk consumption and reduced absorption of ultraviolet rays, supporting the relation between vitamin D deficiency and fibroid development. Vitamin D has an inhibitory effect on leiomyoma cells by suppressio...

Cover illustration left: Detail of a spent nuclear fuel pellet showing radial cracks and the adjacent Zircaloy cladding. middle: Quantum chemical calculation of the incorporation of selenite into the calcite (104) surface. right: SEM image of Y(OH) 3 nanoparticles precipitated on a calcite cleavage surface. with its 1100 employees is one of the largest energy research centers in Europe. It bund...

The absorption of vitamin B12 can be determined by several methods based on the measurement of the radioisotope-labelled vitamin in serum, faeces, and urine, and by external counting over the liver. In general these test procedures distinguish clearly between normal values and those obtained in individuals with pernicious anaemia, but it has been claimed that serial tests by the Schilling urina...