Search Results - "Appelgren, Leif"

Optimal auditing of social benefit fraud: a case study by Appelgren, Leif

“…The aim of this paper is to study the effect of different audit strategies on fraud in one particular social benefit system in Sweden. The efficiency of…”
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A survey of models for determining optimal audit strategies by Appelgren, Leif

“…The problem studied in this survey is how to optimize the allocation of audit resources over an auditee population with respect to available population…”
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Bryophytes of conservation concern decline and traits change in retention patches during two decades following forest harvest by Jönsson, Mari, Perhans, Karin, Appelgren, Leif, Gustafsson, Lena

“…Setting aside tree retention patches at final harvest is a common forest conservation measure, but the long-term responses of species of conservation concern…”
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Retention patches as potential refugia for bryophytes and lichens in managed forest landscapes by Perhans, Karin, Appelgren, Leif, Jonsson, Fredrik, Nordin, Ulrika, Söderström, Bo, Gustafsson, Lena

“…Leaving small patches of forest intact at harvesting is now a standard procedure to mitigate negative effects on biodiversity. One purpose of the patches is to…”
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Scopelophila ligulata recorded for the first time in northern Europe by Appelgren, Leif, Carlsson, Peter, Homble, Kåre

“…Scopelophila ligulata (Spruce) Spruce is reported for the first time from Europe north of the Alps. The moss was discovered in crevices in south facing cliff…”
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Colura calyptrifolia a new oceanic liverwort to Norway and Scandinavia by Hassel, Kristian, Appelgren, Leif, Blom, Hans H., Flynn, Kirstin M., Gaarder, Geir, Heegaard, Einar, Høitomt, Torbjørn, Jordal, John Bjarne, Lima, Maria, Söderström, Lars, Wangen, Kristin

“…Colura calyptrifolia is for the first time reported from Scandinavia, it was discovered in Femanger, Fusa municipality, Hordaland county. C. calyptrifolia was…”
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Pyramidula tetragona(Brid.) Brid. rediscovered in Fennoscandia and new to Norway by Høitomt, Torbjørn, Appelgren, Leif, Lönnell, Niklas, Lye, Kåre Arnstein, Hassel, Kristian

“…The threatened mossPyramidula tetragonais rediscovered in Fennoscandia and found for the first time in Norway. The species has recently been classified as…”
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Integer Programming Methods for a Vessel Scheduling Problem by Appelgren, Leif H

“…In a previous paper, Appelgren (Appelgren, L. 1969. A column generation algorithm for a ship scheduling problem. Trans. Sci. 3 53–68.), a decomposition…”
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A Column Generation Algorithm for a Ship Scheduling Problem by Appelgren, Leif H

“…This paper describes an algorithm for a ship scheduling problem, obtained from a Swedish shipowning company. The algorithm uses the Dantzig-Wolfe decomposition…”
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High occurrence of red-listed bryophytes and lichens in mature managed forests in boreal Sweden by Gustafsson, Lena, Appelgren, Leif, Jonsson, Fredrik, Nordin, Ulrika, Persson, Anette Anette, Weslien, Jan-Olov

“…Successful biodiversity conservation needs to be based on reliable data regarding the distribution and abundance of species. Red Lists summarize the status of…”
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Biodiversity value of potential forest fertilisation stands, as assessed by red-listed and "signal" bryophytes and lichens by Gustafsson, Lena, Appelgren, Leif, Nordin, Anders

“…In Sweden ca. 20 000 ha forestland is fertilised each year. By using red-listed and ‘signal’ bryophytes and lichens as indicators, we investigated whether…”
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An Attrition Game by Appelgren, Leif

“…This paper describes a two-person zero-sum game in function space concerning the optimal allocation of a homogenous defense force on different levels of…”
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Multistage Inventory Models and Techniques by Appelgren, Leif

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Multistage Inventory Models and Techniques by Appelgren, Leif, Scarf, H. E., Gilford, D. M., Shelly, M. W.

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