The elements of a finite nonempty partially ordered set are exposed at independent uniform times in [0,1] to a selector who, at any given time, can see the structure of the induced partial order on the exposed elements. The selector’s task is to choose online a maximal element. This generalizes the classical linear order secretary problem, for which it is known that the selector can succeed wit...

In this paper the background, the context and the main challenges of introducing e-learning at vocational college for business secretaries will be examined. The presented data were gathered from surveys considering all phases of experimental project that took place in the academic year 2005/06 at vocational college Leila in Ljubljana, Slovenia. This article begins with a brief description of ci...

We study online auction settings in which agents arrive and depart dynamically in a random (secretary) order, and each agent’s private type consists of the agent’s arrival and departure times, value and budget. We consider multi-unit auctions with additive agents for the allocation of both divisible and indivisible items. For both settings, we devise truthful mechanisms that give a constant app...

OBJECTIVE Many Norwegian hospitals that are equipped with an electronic medical record (EMR) system now have proceeded to withdraw the paper-based medical record from clinical workflow. In two previous survey-based studies on the effect of removing the paper-based medical record on the work of physicians, nurses and medical secretaries, we concluded that to scan and eliminate the paper based re...

rapidly and accurately are important. Good interpersonal skills also are vital, because mail distribution clerks work closely with other postal workers, frequently under the tension and strain of meeting dispatch or transportation deadlines and quotas. Postal Service workers often begin on a part-time, flexible basis and become regular or full time, in order of seniority as vacancies occur. Ful...

At the pinnacle of his career, Professor Charcot had four secretaries: Charles Féré, Pierre Marie, Georges Gilles de la Tourette and Georges Guinon. They helped the great founder of neurology with his activities at La Salpêtrière Hospital and his private clinic, examining patients before he made the final diagnosis.

The goal of this paper is to find a competitive algorithm for the following problem. We are given a hypergraph G = (X,E), |E| = n, with weighted edges and maximum edge size k. We wish to maximize the weight of a matching M ⊆ E of G, given that edges are revealed in a random order, and that when an edge e is revealed the algorithm must decide either e ∈ M or e / ∈M . Note that this is a generali...