Ökologie (1.453 Artikel)

This review describes recent research into the cause of testicular descent and discusses two controversial theories on the mechanism. New animal models of cryptorchidism are described which shed li...

It is now generally agreed that a deeper understanding of biological processes requires a multi-disciplinary approach employing the tools of biology, chemistry, and physics. Such understanding invo...

In the mid-1980s the set out to publish review articles. The enterprise proved successful, resulting in high-level reviews written by well-known scientists appearing in the . The reviews represent ...

Dieses didaktisch sorgfältig gestaltete Lehrbuch ist primär eine Einführung in die Biochemie für Chemiker und Biologen. Als Schwerpunkte werden die Grundlagen des intermediären Stoffwechsels, der R...

Modern Methods of Plant Analysis When the handbook Modern Methods ofPlant Analysis, was first introduced in 1954, the considerations were: 1. the dependence of scientific progress in biologyon the ...

According to Jones and Smith (1973) the potential adverse effect of maternal alcoholism on the development of the offspring has been referred to in early Greek and Roman mythology. In a Carthaginia...

In the mid-1980s the set out to publish review articles. The enterprise proved successful, resulting in high-level reviews written by well-known scientists appearing in the . The reviews represent ...

1 Quantitative Methoden.- 1.1 Quantitative Proteinbestimmungen.- 1.2 Quantitative Nucleinsäurebestimmungen.- 1.3 Quantitative Phosphatbestimmung.- 1.4 Monosaccharid-Bestimmung.- 1.5 Auswertung quan...

Over the past 30 years one alarming trend is the emergence of plant species resistant to agrochemicals (e.g. insecticides, herbicides, fungicides). Considering the fact that these pesticides are cr...

Today, as the large international genome sequence projects are gaining a great amount of public attention and huge sequence data bases are created it be comes more and more obvious that we are very...

Identification of differentially expressed genes is one of the major challenges in molecular biology. Several techniques allow the cloning of such sequences. However, methods such as RNA subtractio...

In this book the first three chapters outline the chemistry of nickel and heme largely associated with anaerobic life and believed to represent reactions which took place some 3-4x109years ago. Nic...

In the last 10 years a proliferation of information concerning the lantibiotics and related peptide antibiotics has come to the fore. This is the first book to summarize this information comprehens...

Cognition and artificial intelligence are entering a new era in which the aspects of symbolic manipulation and of connectionism begin to come together. This leads to a dialog of truly interdiscipli...

This book provides a comprehensive, up-to-date review of the distribution, pharmacology and physiology of central 5-hydroxytryptamine (5-HT)4 receptors. The 5-HT receptor subtypes exhibit a unique ...