Das Thema „Fundraising im Internet“ wird in der vorliegenden Dissertation unter drei Gesichtspunkten betrachtet: 1. Potentiale des Internets für das Fundraising, 2. Inhalte auf den Websites von Nonprofit-Organisationen sowie 3. Wünsche der Internet-Spender. Zunächst werden auf einer...

This paper presents the first full-fledged branch-and-price (bap) algorithm for the capacitated arc-routing problem (CARP). Prior exact solution techniques either rely on cutting planes or the transformation of the CARP into a node-routing problem. The drawbacks are either models with inherent...

Commodity and energy prices have exhibited an unprecedented increase between October 2006 and July 2008, only to fall sharply during the last months of 2008. Many explanations have been offered to this phenomenon, including steadily increasing demand from China and India, large mandated...

For seventy years ecologists have debated to what extent competition affects the composition of ecological communities. At one extreme, species have been proposed to assemble independently of each other, while at the other extreme, competition and other interspecific interactions have been...

A Bayes net has qualitative and quantitative aspects: The qualitative aspect is its graphical structure that corresponds to correlations among the variables in the Bayes net. The quantitative aspects are the net parameters. This paper develops a hybrid criterion for learning Bayes net structures...

As disease spreads through a population, scientists want to know who gets sick, how bestto prevent a large outbreak, and if an epidemic may occur. For many years, mathematicians usedmodels to approximate answers to these questions; however, these older models used simplifyingassumptions about...

This paper explains the proliferation of consulting activities in nonprofit organizations, and illustrates it by a study of the external consultancies commissioned by one religious/charitable organization (RCO) within a twelve-month period. The qualitative study, conducted over one year,...

Nonprofit organizations are not exempt from the imperatives of employee attraction, retention, and motivation. As competition for staff, donors, and funding increases, the need to manage employee performance will continue to be a critical human resource management issue. This article outlines a...

This paper explains the proliferation of consulting activities in nonprofit organizations, and illustrates it by a study of the external consultancies commissioned by one religious/charitable organization (RCO) within a twelve-month period. The qualitative study, conducted over one year,...

Nonprofit organisations (NPOs) are melting pots combining mission, members and money. Given that the mission of a nonprofit organisation is the reason for its existence, it is appropriate to focus on financial resources in their association with mission and with the individuals who are served by...