La "maladie du Hêtre" en Ardenne belge

in Gauquelin, Xavier (Ed.) Guide de gestion des Forêts en crise sanitaire (2010)

Les crises sanitaires font partie des aléas auxquels les forêts gérées sont parfois confrontées. Elles sont susceptibles de se multiplier au cours des décennies à venir, notamment du fait des conséquences ... [more ▼]

Les crises sanitaires font partie des aléas auxquels les forêts gérées sont parfois confrontées. Elles sont susceptibles de se multiplier au cours des décennies à venir, notamment du fait des conséquences attendues des changements globaux. Les acteurs forestiers ont alors à faire face à des évènements qui désorganisent la gestion forestière courante, pouvant conduire à des épisodes de crise qui se déroulent sur plusieurs années (3 à 10 ans). Ce document met à disposition des acteurs forestiers les bonnes pratiques à mettre en œuvre pour affronter les différents évènements liés à une crise sanitaire, sur les plans organisationnels (partenariat, surveillance sanitaire, cellule de crise, communication) et techniques (mobilisation des bois, aménagement et sylviculture, suivi des phénomènes observés). [less ▲]

Short communication: Genetic relationship between calving traits and body condition score before and after calving in Canadian Ayrshire second-parity cows.

in Journal of Dairy Science (2010), 93(9), 4398-403

The objective of this study was to investigate the genetic relationship between body condition score (BCS) and calving traits (including calving ease and calf survival) for Ayrshire second-parity cows in ... [more ▼]

The objective of this study was to investigate the genetic relationship between body condition score (BCS) and calving traits (including calving ease and calf survival) for Ayrshire second-parity cows in Canada. The use of random regression models allowed assessment of the change of genetic correlation from 100 d before calving to 335 d after calving. Therefore, the influence of BCS in the dry period on subsequent calving could be studied. Body condition scores were collected by field staff several times over the lactation in 101 herds from Quebec and calving records were extracted from the official database used for Canadian genetic evaluation of calving ease. Daily heritability of BCS increased from 0.07 on d 100 before calving to 0.25 at 335 d in milk. Genetic correlations between BCS at different stages ranged between 0.59 and 0.99 and indicated that genetic components for BCS did not change much over lactation. With the exception of the genetic correlation between BCS and direct calving ease, which was low and negative, genetic correlations between BCS and calving traits were positive and moderate to high. Correlations were the highest before calving and decreased toward the end of the ensuing lactation. The correlation between BCS 10 d before calving and maternal calving ease was 0.32 and emphasized the relationship between fat cows before calving with dystocia. Standards errors of the genetic correlations estimates were low. Genetic correlations between BCS and calf survival were moderate to high and favorable. This indicates that cows with a genetically high BCS across lactation would have a greater chance of producing a calf that survived (maternal calf survival) and that they would transmit genes that allow the calf to survive (direct calf survival). [less ▲]

Het Nederlandse literatuuronderwijs in de Waalse provincies als prescriptieve Landeskunde (1817-1900)

in Konst, Jan; Hüning, Matthias; Holzhey, Tanja (Eds.) Neerlandistiek in Europa: Bijdragen tot de geschiedenis van de universitaire neerlandistiek buiten Nederland en Vlaanderen (2010)

This article focuses on three nineteenth-century literary histories written for French-speaking students of Dutch. The histories illustrate a concern on the part of the authors (J.F.X. Würth, F.A ... [more ▼]

This article focuses on three nineteenth-century literary histories written for French-speaking students of Dutch. The histories illustrate a concern on the part of the authors (J.F.X. Würth, F.A. Snellaert, and J. Stecher) not only with the teaching of Dutch literature and the development of a solid Dutch literary tradition but also with the presentation of their material in keeping with an underlying ideological framework. In each case their presentation was designed to reinforce a particular view of country and culture and of the respective roles of the Dutch, Flemish and Walloon peoples in the creation of a one-nation state. The differences between them reflect a change in the significance of Dutch literature as a result of political developments, leading in turn to a paradigm shift in the teaching of the subject at university. An analysis of the didactic aims and principles underlying the literary histories written by Würth, Snellaert and Stecher reveals the extent to which political allegiances and nationalist considerations determined their selection criteria and the organisation of their subject matter. Not surprisingly, the contemporary critical response to these study books shows a similar ideological bias. [less ▲]

Relations internationales en Afrique

Learning material (2010)

Transport and interaction blockade of cold bosonic atoms in a triple-well potential

in New Journal of Physics (2010), 12

We theoretically investigate the transport properties of cold bosonic atoms in a quasi-one-dimensional (1D) triple-well potential that consists of two large outer wells, which act as microscopic source ... [more ▼]

We theoretically investigate the transport properties of cold bosonic atoms in a quasi-one-dimensional (1D) triple-well potential that consists of two large outer wells, which act as microscopic source and drain reservoirs, and a small inner well, which represents a quantum-dot-like scattering region. Bias and gate 'voltages' introduce a time-dependent tilt of the triple-well configuration, and are used to shift the energetic level of the inner well with respect to the outer ones. By means of exact diagonalization considering a total number of six atoms in the triple-well potential, we find diamond-like structures for the occurrence of single-atom transport in the parameter space spanned by the bias and gate voltages. We discuss the analogy with Coulomb blockade in electronic quantum dots, and point out how one can infer the interaction energy in the central well from the distance between the diamonds. [less ▲]

Tove Jansson's Dreamworld

in International Journal of Comic Art [=IJOCA] (2010), 12(2-3), 648-649

An analysis of the investment climate in agriculture in Hanoi Province, Vietnam

in Journal of ISSAAS (2010), 16(2), 26-38

Hanoi province, Vietnam has much potential for agricultural development with its large consumer market for agricultural products, soil and water resources, natural climate, physical and social ... [more ▼]

Hanoi province, Vietnam has much potential for agricultural development with its large consumer market for agricultural products, soil and water resources, natural climate, physical and social infrastructure. It is also one of provinces that has attracted a large number of investors. However, there are few agriculture investment projects in Hanoi in recent years. This paper presents the results of the structure interview of 200 managers of agricultural firms, co-operatives and farms in Hanoi province in 2008-2009. Even if these enterprises are pleased with their business performance and profitability, the investment climate could have negative effects obstructing investment incentives in agriculture. The study revealed eight key factors determining the investment climate in agriculture in Hanoi province, which include: land issue, provincial policies for agriculture, capital, physical infrastructure, administrative procedures, market, technology and labor issue. Land issues and provincial agricultural policies are the most important constraints; the second group are capital, physical infrastructure, governmental administration; and the third are market, technology and labor issues. [less ▲]

Regular-to-Chaotic Tunneling Rates: From the Quantum to the Semiclassical Regime

in Physical Review Letters (2010), 104(11), 114101

We derive a prediction of dynamical tunneling rates from regular to chaotic phase-space regions combining the direct regular-to-chaotic tunneling mechanism in the quantum regime with an improved resonance ... [more ▼]

We derive a prediction of dynamical tunneling rates from regular to chaotic phase-space regions combining the direct regular-to-chaotic tunneling mechanism in the quantum regime with an improved resonance-assisted tunneling theory in the semiclassical regime. We give a qualitative recipe for identifying the relevance of nonlinear resonances in a given h regime. For systems with one or multiple dominant resonances we find excellent agreement to numerics. [less ▲]

Obesity

in Ettinger, Stephen J; Feldman, Edwards C (Eds.) Textbook of Veterinary Internal Medicine 7th edition (2010)

La lune maléfique dans le Croissant des larmes de José Tshisungu wa Tshisungu

in Vanhaegendoren, Koen (Ed.) Esthétique et politique. Autour de l’œuvre littéraire de José Tshisungu wa Tshisungu (2010)