Den tredje alder

The Alder Hey affair.

Appendix 1. Diels-Alder Reactions

One of the most efficient methods (high yield, controlled stereochemistry, diverse functionality) to construct rings from smaller fragments is via cycloaddition reactions. The reverse reaction, namely splitting of a ring into smaller fragments is termed a cycloreversion reaction is also an important synthetic tool. (For example, in the present experiment it is the cracking of cyclopentadiene di...

Silviculture in Red Alder Stands

In the past, there has been an emphasis on conifer tree species in forestry operations in British Columbia. As a result, there is a serious lack of information regarding disease and decay problems in most hardwood tree species. This presentation reports the results of recent studies on levels of decay in natural red alder stands, and on the formation of stain in harvested alder logs. Disease pr...

     Fabian Van Den Broek

Software contains bugs and bugs cost money. A good way to find some bugs quickly is the use of static code analysis. There are no exact numbers on the use of static code analyzers in the industry, but in our experience to few software developers actually make use of them. This thesis describes a survey that was conducted to find out why only so few developers in the Java community use static co...

Lösungen Zu Den Übungsaufgaben

. () Angenommen, es gibt a 6= b ∈ A mit g(f(a)) = g(f(b)). Da f injektiv ist, gilt f(a) 6= f(b). Dann muss aber auch g(f(a)) 6= g(f(b)) gelten, da g injektiv ist. () und () folgen analog. () Würde es f(a) = f(b) für a 6= b ∈ A gelten, so sollte auch g(f(a)) = g(f(b)) gelten, ein Widerspruch zu der Injektivität von g ◦ f . () und () folgen analog. Beispiel: Wir betrachten die Mengen A = ...