ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Berkeley, Calif. : Berkeley Electronic Press (now: De Gruyter)
    Contributions to macroeconomics 2.2002, 1, art7 
    ISSN: 1534-6005
    Source: Berkeley Electronic Press Academic Journals
    Topics: Economics
    Notes: Countries with more developed financial sectors experience smaller fluctuations in real per capita output, consumption, and investment growth. However, the manner in which the financial sector develops matters. The relative importance of banks in the financial system is important in explaining GDP, consumption, and investment volatility, and the proportion of credit provided to the private sector explains the volatility of consumption and output. The main results are generated using fixed-effects estimation with panel data from 70 countries covering the years 1956 through 1998.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of economic growth 4 (1999), S. 213-232 
    ISSN: 1573-7020
    Keywords: education ; work experience ; self-employment ; growth
    Source: Springer Online Journal Archives 1860-2000
    Topics: Economics
    Notes: Abstract We examine the implications for growth and development of the existence of two types of human capital: entrepreneurial and professional. Entrepreneurs accumulate human capital through a work-experience intensive process, whereas professionals’ human capital accumulation is education-intensive. Moreover, the return to entrepreneurship is uncertain. We show how skill-biased technological progress leads to changes in the composition of aggregate human capital; as technology improves, individuals devote less time to the accumulation of human capital through work experience and more to the accumulation of human capital through professional training. Thus, our model explains why entrepreneurs play a relatively more important role in intermediate-income countries and professionals are relatively more abundant in richer economies. It also shows that those countries that initially have too little of either entrepreneurial or professional human capital may end up in a development trap.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Applied mathematics & optimization 26 (1992), S. 253-272 
    ISSN: 1432-0606
    Keywords: Homogenization ; G-convergence ; H-convergence ; Quasi-linear PDE
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract We consider in this paper the limit behavior of the solutionsu ɛ of the problem $$\begin{gathered} - div(a^\varepsilon Du^\varepsilon ) + \gamma u^\varepsilon = H^\varepsilon (x, u^\varepsilon , Du^\varepsilon ), \hfill \\ u^\varepsilon \in H_0^1 (\Omega ) \cap L^\infty (\Omega ), \hfill \\ \end{gathered}$$ whereH ɛ has quadratic growth inDu ɛ anda ɛ (x) is a family of matrices satisfying the general assumptions of abstract homogenization. We also consider the problem $$\begin{gathered} - div(a^\varepsilon Du^\varepsilon ) + G^\varepsilon (x, u^\varepsilon , Du^\varepsilon ) = f \in H^{ - 1} (\Omega ), \hfill \\ u^\varepsilon \in H_0^1 (\Omega ), G^\varepsilon (x, u^\varepsilon , Du^\varepsilon ) \in L^1 (\Omega ), u^\varepsilon G^\varepsilon (x, u^\varepsilon , Du^\varepsilon ) \in L^1 (\Omega ) \hfill \\ \end{gathered}$$ whereG ɛ has quadratic growth inDu ɛ and satisfiesG ɛ (x, s, ξ)s ≥ 0. Note that in this last modelu ɛ is in general unbounded, which gives extra difficulties for the homogenization process. In both cases we pass to the limit and obtain an homogenized equation having the same structure.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Archive for rational mechanics and analysis 94 (1986), S. 307-334 
    ISSN: 1432-0673
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Potential analysis 9 (1998), S. 105-142 
    ISSN: 1572-929X
    Keywords: Variational inequalities ; penalization ; Lewy–Stampacchia's inequality.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract In this paper we prove the Lewy–Stampacchia's inequality for elliptic variational inequalities with obstacle involving fairly general Leray–Lions operators. The main novelty of the paper is the method of proof, which uses the natural penalization. One of the steps of the proof consists in proving, again thanks to the natural penalization, that the nonnegative cone of W 0 1,p (Ω) is dense in the nonnegative cone of W-1,p′(Ω).
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Annali di matematica pura ed applicata 152 (1988), S. 183-196 
    ISSN: 1618-1891
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Description / Table of Contents: Résumé Dans cet article nous montrons l'existence d'(au moins) une solution de l'inéquation variationnelle (*) $$\left\{ {\begin{array}{*{20}c} {u \in W_0^{1,v} (\Omega ) \cap L^\infty (\Omega ), u \geqslant \psi p.p. dans \Omega ,} \\ {\langle A(u),\upsilon - u\rangle + \int\limits_\Omega {{\rm H}(x,u,Du)(\upsilon - u) \geqslant 0,} } \\ {\forall \upsilon \in W_0^{1,v} (\Omega ) \cap L^\infty (\Omega ), \upsilon \geqslant \psi p.p. dans \Omega ,} \\ \end{array} } \right.$$ où A est un opérateur de type Leray-Lions défini sur W o 1,p (Ω), à valeurs dans W−1,p′(Ω) et où la croissance de H est au plus en ¦Du¦p. L'obstacle ψ est une fonction mesurable à valeurs dans〉 $$\bar R$$ , la seule hypothèse étant que le convexe $$\{ \upsilon \in W_0^{1,v} (\Omega ) \cap L^\infty (\Omega ):\upsilon \geqslant \psi p.p. dans \Omega \} $$ n'est pas vide: ainsi le cas ψ=−∞ (qui correspond aucas ou (*) est une équation) est également traité. Enfin il n'y a aucune hypothèse de régularité sur les données: Ω est un ouvert borné deR n, et A et H sont définis à partir de fonctions de Carathéodory.
    Abstract: Sunto In questo lavoro si prova un risultato di esistenza di soluzioni délia disequazione variazionale (*) $$\left\{ {\begin{array}{*{20}c} {u \in W_0^{1,v} (\Omega ) \cap L^\infty (\Omega ), u \geqslant \psi q.o. in \Omega ,} \\ {\langle A(u),\upsilon - u\rangle + \int\limits_\Omega {{\rm H}(x,u,Du)(\upsilon - u) \geqslant 0,} } \\ {\forall \upsilon \in W_0^{1,v} (\Omega ) \cap L^\infty (\Omega ), \upsilon \geqslant \psi q.o. in \Omega ,} \\ \end{array} } \right.$$ dove A é un operatore del lipo di Leray-Lions difinito suW 0 1,v (Ω) e a valori inW 1,v (Ω), e H é una funzione de Carathéodory che cresce al piú come |Du| v . La sola ipotesi che si fa su ψ é che $$\{ \upsilon \in W_0^{1,v} (\Omega ) \cap L^\infty (\Omega ):\upsilon \geqslant \psi q.o. in \Omega \} \ne 0/$$ ; ψ é una funzione misurable a valori in $$\bar R$$ : questo permette ψ=−∞ e in tal caso (*) diventa una equazione. In fine, non viene fatta nessuna ipotesi di regolarita sui dati: Ω é un aperto limitato diR N ed A e H sono definiti a patire da funzioni di Caratheodory.
    Notes: Summary This paper proves the existence of (at least) one solution of the following variational inequality: (*) $$\left\{ {\begin{array}{*{20}c} {u \in W_0^{1,v} (\Omega ) \cap L^\infty (\Omega ), u \geqslant \psi a.e. in \Omega ,} \\ {\langle A(u),\upsilon - u\rangle + \int\limits_\Omega {{\rm H}(x,u,Du)(\upsilon - u) \geqslant 0,} } \\ {\forall \upsilon \in W_0^{1,v} (\Omega ) \cap L^\infty (\Omega ), u \geqslant \psi a.e. in \Omega .} \\ \end{array} } \right.$$ Here A is an operator of Leray-Lions type acting from W 0 1,p (Ω) into W−1,p′(Ω) and H grows like ¦Du¦p. The obstacle ψ is a measurable function with values in $$\bar R$$ , the only hypothesis being $$\{ \upsilon \in W_0^{1,v} (\Omega ) \cap L^\infty (\Omega ):\upsilon \geqslant \psi a.e in \Omega \} \ne 0/$$ . This allows ψ to be −∞, recovering the case where (*) is an equation. Finally there is no smoothness assumptions on the data: Ω is a bounded open set inR N , A and H are defined from Carathéodory functions.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    Publication Date: 2015-10-18
    Description: Although recent advances have been gained on genome evolution in angiosperm lineages, virtually nothing is known about karyotype evolution in the other group of seed plants, the gymnosperms. Here, we used high-density gene-based linkage mapping to compare the karyotype structure of two families of conifers (the most abundant group of gymnosperms) separated around 290 Ma: Pinaceae and Cupressaceae . We propose for the first time a model based on the fusion of 20 ancestral chromosomal blocks that may have shaped the modern karyotpes of Pinaceae (with n = 12) and Cupressaceae (with n = 11). The considerable difference in modern genome organization between these two lineages contrasts strongly with the remarkable level of synteny already reported within the Pinaceae . It also suggests a convergent evolutionary mechanism of chromosomal block shuffling that has shaped the genomes of the spermatophytes.
    Electronic ISSN: 1759-6653
    Topics: Biology
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 8
    Publication Date: 2012-09-08
    Description: Continuing advances in genome sequencing technologies and computational methods for comparative genomics currently allow inferring the evolutionary history of entire plant and animal genomes. Based on the comparison of the plant and animal genome paleohistory, major differences are unveiled in 1) evolutionary mechanisms (i.e ., polyploidization versus diploidization processes), 2) genome conservation (i.e ., coding versus noncoding sequence maintenance), and 3) modern genome architecture (i.e., genome organization including repeats expansion versus contraction phenomena). This article discusses how extant animal and plant genomes are the result of inherently different rates and modes of genome evolution resulting in relatively stable animal and much more dynamic and plastic plant genomes.
    Electronic ISSN: 1759-6653
    Topics: Biology
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 9
    Publication Date: 2003-02-01
    Print ISSN: 0362-546X
    Electronic ISSN: 1873-5215
    Topics: Mathematics
    Published by Elsevier
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 10
    Publication Date: 2015-03-19
    Description: We used nine complete genome sequences, from grape, poplar, Arabidopsis , soybean, lotus, apple, strawberry, cacao, and papaya, to investigate the paleohistory of rosid crops. We characterized an ancestral rosid karyotype, structured into 7/21 protochomosomes, with a minimal set of 6,250 ordered protogenes and a minimum physical coding gene space of 50 megabases. We also proposed ancestral karyotypes for the Caricaceae, Brassicaceae, Malvaceae, Fabaceae, Rosaceae, Salicaceae, and Vitaceae families with 9, 8, 10, 6, 12, 9, 12, and 19 protochromosomes, respectively . On the basis of these ancestral karyotypes and present-day species comparisons, we proposed a two-step evolutionary scenario based on allohexaploidization involving the newly characterized A, B, and C diploid progenitors leading to dominant (stable) and sensitive (plastic) genomic compartments in any modern rosid crops. Finally, a new user-friendly online tool, "DicotSyntenyViewer" (available from http://urgi.versailles.inra.fr/synteny-dicot ), has been made available for accurate translational genomics in rosids.
    Electronic ISSN: 1759-6653
    Topics: Biology
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...