Detectie en bestrijding van wol- en schildluis in de sierteelt onder glas

Mealybugs and armoured scales are major pest species in ornamental crops in greenhouses. The first part of this report focuses on mealybug detection. The research presented here builds on previous study in which it was shown on laboratory scale that the odour profile released by plants after damage by mealybugs differs from the odour profile released by undamaged plants and plants that suffer from spider mite or mechanical damage. In the present study the change of several compounds in response to mealybug infection was shown to depend on a number of different factors: the growth stage of the plant (flowering/non-flowering), the time of the day sampling took place, the mealybug density and the duration of the mealybug infection. Although in each of the laboratory experiments several plant volatiles were found to significantly differ between mealybug-infested plants and control plants, so far no candidate indicator-volatiles have been found that always reacted significantly and in the same manner to a mealybug infection. The screening of new pesticides showed one pesticide to be effective against both the citrus mealybug Planococcus citri and the rose scale Aulacapsis rosae. Several isolates of entomopathogenic fungi were able to infect mealybugs in the laboratory, but results obtained in the greenhouse were disappointing. Lacewing larvae of the species Chrysoperla lucasina were able to control mealybugs when released repeatedly. The addition of Ephestia eggs disrupted this control in some cases

OFraMP: a fragment-based tool to facilitate the parametrization of large molecules

An Online tool for Fragment-based Molecule Parametrization (OFraMP) is described. OFraMP is a web application for assigning atomic interaction parameters to large molecules by matching sub-fragments within the target molecule to equivalent sub-fragments within the Automated Topology Builder (ATB, atb.uq.edu.au) database. OFraMP identifies and compares alternative molecular fragments from the ATB database, which contains over 890,000 pre-parameterized molecules, using a novel hierarchical matching procedure. Atoms are considered within the context of an extended local environment (buffer region) with the degree of similarity between an atom in the target molecule and that in the proposed match controlled by varying the size of the buffer region. Adjacent matching atoms are combined into progressively larger matched sub-structures. The user then selects the most appropriate match. OFraMP also allows users to manually alter interaction parameters and automates the submission of missing substructures to the ATB in order to generate parameters for atoms in environments not represented in the existing database. The utility of OFraMP is illustrated using the anti-cancer agent paclitaxel and a dendrimer used in organic semiconductor devices. Graphical abstract: OFraMP applied to paclitaxel (ATB ID 35922).[Figure not available: see fulltext.

The photochemistry of stilbenes and 1,2-dihydronaphthalenes in methanol

Contains fulltext : mmubn000001_071055681.pdf (publisher's version ) (Open Access)Promotor : W. Laarhoven135 p

Interactive visualization and task management on the 48-core Intel SCC

International audienceIn this paper we propose and describe how we have built a tool that enables a user to interactively monitor and manage a many-core system like the 48-core experimental Single-chip Cloud Computer (SCC), which was created by Intel Labs targeting the many-core research community. We provide the user with a visual representation of the current state of the system on multiple levels of detail, such as chip, core and task. We allow the user to create, start, pause and migrate tasks across different cores. We also allow the user to easily adjust the voltage and frequency of the chip. However this tool can run on any PC with a screen and input devices, we have optimized the interface to run on a multi-touch device for the best ease of use

Interactive visualization and task management on the 48-core Intel SCC

In this paper we propose and describe how we have built a tool that enables a user to interactively monitor and manage a many-core system like the 48-core experimental Singlechip Cloud Computer (SCC), which was created by Intel Labs targeting the many-core research community. We provide the user with a visual representation of the current state of the system on multiple levels of detail, such as chip, core and task. We allow the user to create, start, pause and migrate tasks across different cores. We also allow the user to easily adjust the voltage and frequency of the chip. However this tool can run on any PC with a screen and input devices, we have optimized the interface to run on a multi-touch device for the best ease of use

Transport infrastructure and geotechnical engineering: ELGIP position paper

The European Large Geotechnical Institutes Platform (ELGIP) is a group of 14 European research organizations, leading in geotechnical engineering, which aims to promote internationally the profession, its network and its societal relevance. One ELGIP vision is that all transport infrastructure should aim for an optimal geotechnical design. The present paper shows the relationship between the pressing challenges on European transport infrastructures and the crucial role that geotechnical engineering plays in solving them, emphasising the need for improved knowledge and understanding of ground properties in transport infrastructure.publishedVersio

Tools to support maintenance strategies under soft soil conditions

Costs for maintenance of infrastructure in municipalities with soft soil underground conditions, are estimated to be almost 40 % higher than in others. As a result, these municipalities meet financial problems that cause overdue maintenance. In some cases municipalities are even afraid to be unable to offer a minimum service level in future. In common, traditional practice, roads and sewerage systems have been constructed in trenches that consist of sandy material that replaces the upper meters of the soft soil. Under influence of its weight, this causes accelerated settlements of the construction. A number of alternative constructions have been developed, e.g. using light-weight materials to limit settlement velocity. In order to limit future maintenance costs, improvement of maintenance strategies is desired. Tools have been and will be developed to support municipalities in improving their maintenance strategies and save money by doing that. A model (BALANS) that weighs the attractiveness of alternative solutions under different soil, environmental and economic circumstances, will be presented