1,724,323 research outputs found

    Bruce R. Dalgaard

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    Bruce R. Dalgaard, Dir. Center for Economic Educatio

    Dalgaard et al. Supplementary Files

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    Dalgaard et al.Running title: Breakfast composition and satietyThe Supplementary Files are as follows:Supplementary Files, Figure 1: Pictures showing the breakfast test meals.Supplementary Files, Tabel 1: Overview of questionnaires used to assess appetite sensations before, between, and after meals, questionnaires used to asses palatability of test meals, and demographic- and modified Dutch eating behavior questions.</p

    Linear superposition of optimized non-orthogonal Slater determinants for singlet states

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    The implementation of two simple ideas concerning the optimization of a many-electron ground state wavefunction is reported. Firstly, the wavefunction is written as a sum of non-orthogonal Slater determinants. Secondly, the optimization is carried out by adding one determinant at a time and determining the best possible orbitals to be used in that determinant. Technical details of gradient-optimization methods are included. Calculations on the electronic ground state of Be, BH and H2O indicate that near full-CI accuracy can be attained using a comparatively small number of determinants. Finally, it is conjectured that a geminal approach might provide an effective solution to the problem of initiating the optimization sequence for each successively added determinant. © 1993

    Knoglebrud og kongerøgelse: Litterære og filologiske overvejelser over Thomas Kingo: Odensee Hospital

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    Niels Dalgaard og Marita Akhøj Nielsen om litterære og filologiske overvejelser over Thomas Kingos digt De Fattiges udj Odensee Hospital allerinderligste og underdanigste Suk og Søgning hos vor allernaadigste Herre og Konge

    The Physiological Foundation of the Wealth of Nations

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    In the present paper we advance a theory of pre-industrial growth where body size and population size are endogenously determined. Despite the fact that parents invest in both child quantity and productivity enhancing child quality, a take-off does not occur due to a key “physiological check”: if human body size rises, subsistence requirements will increase. This mechanism turns out to be instrumental in explaining why income stagnates near an endogenously determined subsistence boundary. Key predictions of the model are examined using data for ethnic groups as well as for sub-national regions

    Identification of a novel type of spacer element required for imprinting in fission yeast

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    Asymmetrical segregation of differentiated sister chromatids is thought to be important for cellular differentiation in higher eukaryotes. Similarly, in fission yeast, cellular differentiation involves the asymmetrical segregation of a chromosomal imprint. This imprint has been shown to consist of two ribonucleotides that are incorporated into the DNA during laggingstrand synthesis in response to a replication pause, but the underlying mechanism remains unknown. Here we present key novel discoveries important for unravelling this process. Our data show that cis-acting sequences within the mat1 cassette mediate pausing of replication forks at the proximity of the imprinting site, and the results suggest that this pause dictates specific priming at the position of imprinting in a sequence-independent manner. Also, we identify a novel type of cis-acting spacer region important for the imprinting process that affects where subsequent primers are put down after the replication fork is released from the pause. Thus, our data suggest that the imprint is formed by ligation of a not-fullyprocessed Okazaki fragment to the subsequent fragment. The presented work addresses how differentiated sister chromatids are established during DNA replication through the involvement of replication barriers

    A variational matrix decomposition applied to full configuration-interaction calculations

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    A matrix decomposition method for the determination of the lowest eigenvalue of a Hermitian matrix is formulated as an approach to full configuration-interaction calculations on the ground state of many-electron systems. For a wavefunction of the form |Ï> = Σ | α, Î2>CαÎ2the expansion coefficients are written as a separable sum of product terms PαQPÎ2. The elements Pαand QÎ2are then determined from the variation principle for each term. The corresponding Hermitian eigenvalue problem has a dimension which is essentially the square root of the dimension of the original problem. Preliminary calculations on the ground state of the beryllium atom indicate that nearly full configuration-interaction results can be obtained using a comparatively small number of product terms. © 1992

    Evaluating Aid Effectiveness in the Aggregate: A critical assessment of the evidence

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    The purpose of the present evaluation study is to discuss the empirical studies that attempt to estimate the impact of foreign aid on economic growth. The study draws on a previous evaluation study (Dalgaard and Hansen, 2009), which introduces the general econometric methodology involved in making assessments about the aggregate impact of aid. In order to fully benefit from the discussion below it is therefore advisable for readers without prior knowledge of econometrics to review the material discussed in Dalgaard and Hansen (2009). The present study provides insights into the following questions 1. What are the central mechanisms linking aid to growth? 2. How much should one expect from aid a priori? 3. What are the best available estimates of the impact from total aid on economic growth in income per capita? 4. Does aid modality matter
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