Scenarios for the future Lithuanian State forest sector

Three alternative scenarios to the much debated present organisation of the Lithuanian State forest sector are examined: (i) the integrated, where all functions are delegated to one central administrative authority – the Danish prototype, (ii) the commercialised, where State forests are managed by a commercial State company – the Irish prototype, and (iii) the minimalistic, where only negligible forest areas of special importance remain in State ownership – the Swedish prototype. The scenarios are assessed according to six imperatives: (i) sort out the ambiguity of the present structure, (ii) increase the profitability, (iii) reduce the level of public spending, (iv) accommodate changes in ownership structure, (v) rely on a holistic approach, and (vi) comply with the national forest policy. If adopted, any of the scenarios would most likely improve the various elements of State forestry, although in substantially different ways. Politicians will take the final decision that may be supported by the findings of this study

Nietzsche - Tidssvarende, alt for tidssvarende? (Samtale med Jens Erik Kristensen)

Nietzsches aktualitet eller samtidighed er omdrejningspunktet for dette interview med Jens Erik Kristensen. Her anstilles der blandt andet refleksioner over Nietzsches utidssvarende betragtninger og disses overlevelse af sig selv, fordi hans tænkning i dag så at sige er kommet fuldt på omgangshøjde med tiden. Endvidere kortlægges Nietzsche-receptionen dels i Frankrig i det 20. århundrede centreret omkring Foucault, Lyotard og Deleuze dels i Tyskland omkring Heidegger og Habermas. Endelig specificeres hvorledes Nietzsches tanker er genstand for en sociologisering og demokratisering indenfor eksempelvis det pædagogiske felt med særligt henblik på forholdet mellem dannelse og selvdannelse

Equilibria with Arbitrary Market Structure.

Fifty years ago Arrow introduced contingent commodities and Debreu observed that this reinterpretation of a commodity was enough to apply the existing general equilibrium theory to uncertainty and time. This interpretation of general equilibrium theory is the Arrow-Debreu model. The complete market predicted by this theory is clearly unrealistic, and Radner (1972) formulated and proved existence of equilibrium in a multi-period model with incomplete markets. Hart (1975) showed that the lower bound on consumption sets assumed by Radner was an essential limitation, but needed for the result. The problem raised by Hart examples was eventually solved by Duffie and Shafer (1985,86). In these papers are shown generic existence of equilibria in economics with incomplete markets. In this paper the Radner result is extended in other directions. Radner assumed a specific structure of markets, independence of preferences, indifference of preferences, and total and transitive preferences. All of these assumptions are dropped here.

Dynamic Relative Compression, Dynamic Partial Sums, and Substring Concatenation

Given a static reference string $R$ and a source string $S$, a relative compression of $S$ with respect to $R$ is an encoding of $S$ as a sequence of references to substrings of $R$. Relative compression schemes are a classic model of compression and have recently proved very successful for compressing highly-repetitive massive data sets such as genomes and web-data. We initiate the study of relative compression in a dynamic setting where the compressed source string $S$ is subject to edit operations. The goal is to maintain the compressed representation compactly, while supporting edits and allowing efficient random access to the (uncompressed) source string. We present new data structures that achieve optimal time for updates and queries while using space linear in the size of the optimal relative compression, for nearly all combinations of parameters. We also present solutions for restricted and extended sets of updates. To achieve these results, we revisit the dynamic partial sums problem and the substring concatenation problem. We present new optimal or near optimal bounds for these problems. Plugging in our new results we also immediately obtain new bounds for the string indexing for patterns with wildcards problem and the dynamic text and static pattern matching problem

Danskuddannelse i politisk spændetrøje

Undervisning i dansk som andetsprog for voksne indvandrere og flygtninge står i dag højt på den politiske dagsorden og skal således leve op til mere end rent sprog- faglige krav. Undervisningen er indlejret i en integrationspolitisk og arbejdsmar- kedspolitisk dagsorden, hvor sproglæringen er et middel til et højere mål, nemlig integration via arbejde og selvforsørgelse. (...