Vineyard microclimate and yield under different plastic covers.

The use of plastic cover in vineyards minimizes effects of adverse weather conditions. The northwest of São Paulo State is one of the largest grape producing regions in Brazil; however, few studies investigate the effects of different plastic covers on vineyards in this region. This study compared the effect of black shading screen (BSS) and braided polypropylene film (BPF) on BRS Morena vineyard microclimate, grown on an overhead trellis system in the northwestern São Paulo. The experiments were carried out during three growing seasons (2012 ? 2014). BSS allowed superior incoming solar radiation (SR) transmissivity, resulting in higher net radiation (Rn), and higher ratio between photosynthetically active (PAR) and SR. No differences were observed between the average air temperatures (T) and relative humidity (RH) of covered environments (BPF and BSS) and outside condition (automatic weather station ? AWS), due to high air circulation, despite wind speed (WS) reduction caused by plastic covers. BPF provided better conditions for vineyard growth with higher fruit yield than vineyard under BSS regarding the number of shoots with bunches per plant, bunch and stem weights, longitudinal diameter of berries, quantity of fertile buds per shoot, and yield per shoot and per plant. BPF covers also influenced leaf size and growth speed of plants in vineyards. Keywords Black shading screen . Braided polypropylene film . BRS Morena . Leaf wetness duration . Yiel

Typhoon : A Middleware for Epidemic Propagation of Software Updates

International audienceApplications for mobiles devices are subject to very frequent updates for fixing security vulnerabilities, ensuring compatibility with new hardware and APIs or enhancing functionalities. Getting the new version of an application involves the download of a significant amount of data, which is not practical through low-bandwidth/high-cost links. As a consequence, mobile device users often fail to update their applications. This paper introduces a collaborative and epidemic updating scheme to improve software updates distribution. In our approach, updates are distributed by the surrounding devices, eliminating the need for costly resources. Moreover, the packaging of these updates, which consists in delivering binary patches of the difference with a previous version, dramatically reduces the amount of data to download. Preliminary experimental results based on real contact traces show that our approach offers an efficient selection and recovery of patches, ensuring a fast update for each participating device

Managing model adaptation by precise detection of metamodel changes

Abstract. Technological and business changes influence the evolution of software systems. When this happens, the software artifacts may need to be adapted to the changes. This need is rapidly increasing in systems built using the Model-Driven Engineering (MDE) paradigm. An MDE system basically consists of metamodels, terminal models, and transformations. The evolution of a metamodel may render its related terminal models and transformations invalid. This paper proposes a three-step solution that automatically adapts terminal models to their evolving metamodels. The first step computes the equivalences and (simple and complex) changes between a given metamodel, and a former version of the same metamodel. The second step translates the equivalences and differences into an adaptation transformation. This transformation can then be executed in a third step to adapt to the new version any terminal model conforming to the former version. We validate our ideas by implementing a prototype based on the AtlanMod Model Management Architecture (AMMA) platform. We present the accuracy and performance that the prototype delivers on two concrete examples: a Petri Net metamodel from the research literature, and the Netbeans Java metamodel

BreakBot: Static Reverse Dependency Compatibility Testing for Java Libraries (Artefacts)

The content presented in this repository accompanies the paper "BreakBot: Static Reverse Dependency Compatibility Testing for Java Libraries" authored by Lina Ochoa, Thomas Degueule, Jean-Rémy Falleri, and Jurgen Vinju. The paper was submitted to the IEEE Transactions on Software Engineering journal (TSE'23). This paper is an extension of the vision paper "BreakBot: Analyzing the Impact of Breaking Changes to Assist Library Evolution" published and selected as the best paper of the New Ideas and Emerging Results (NIER'22) track at the International Conference on Software Engineering (ICSE'22). This study introduces the static Reverse Dependency Compatibility Testing (RDCT) approach and its implementation for Java libraries, BreakBot. Static RDCT helps library maintainers detect breaking changes impact on client code, and integrates relevant insights into their development workflow. Moreover, BreakBot is a GitHub bot used to apply static RDCT to Java libraries hosted in such version control system. Relevant Links Maracas: https://github.com/alien-tools/maracas BreakBot: https://github.com/alien-tools/breakbo

Social organisation and the dispersal on non-breeding magpies Pica pica

SIGLEAvailable from British Library Document Supply Centre- DSC:DX96024 / BLDSC - British Library Document Supply CentreGBUnited Kingdo

Efeito do estresse hídrico e envelhecimento precoce na viabilidade de sementes osmocondicionadas de paineira (Chorisia speciosa) Water stress and accelerated aging effects on the viability of osmoconditioned Chorisia speciosa seeds

O objetivo deste trabalho foi avaliar a eficiência do condicionamento osmótico em aumentar a tolerância de sementes de paineira (Chorisia speciosa St. Hil.) ao estresse hídrico e ao envelhecimento precoce. As sementes foram condicionadas em solução de KNO3 (0,1M) a 20ºC durante 24 horas, e desidratadas a 27ºC até atingirem o peso inicial, apresentado antes do tratamento. Em seguida, foram expostas ao estresse hídrico simulado com soluções de PEG 6000 nos potenciais osmóticos de 0,0, -0,1, -0,2, -0,3, -0,4, -0,5, -0,6 e -0,7 MPa e aos efeitos do envelhecimento precoce (45ºC e 100% UR) durante 0, 24, 48, 72, 96 e 120 horas. Nas sementes condicionadas e submetidas ao estresse hídrico, os valores médios de porcentagem e velocidade de germinação foram estatisticamente superiores aos obtidos em sementes não condicionadas. Além disso, o condicionamento osmótico aumentou o limite máximo de tolerância ao estresse hídrico. As sementes condicionadas foram mais sensíveis ao envelhecimento precoce.<br>The objective of this work was to evaluate the efficiency of osmotic conditioning on the tolerance increase of seeds of Chorisia speciosa St. Hil. to water stress and accelerated aging. The seeds previously scarified (punction) were primed in KNO3 (0.1M) solutions at 20ºC during 24 hours. After that, the seeds were dried (at 27ºC) until the initial moisture level, presented before the pre-imbibition, was reached. Primed and non primed seeds were exposed to water stress simulated with PEG 6000 solutions, with 0.0, -0.1, -0.2, -0.3, -0.4, -0.5, -0.6 and -0.7 MPa of osmotic potentials and to accelerated aging at 45ºC and 100% of RU during 0, 24, 48, 72, 96 and 120 hours. The mean values of rate and germination percentage were higher in primed seed than in non primed ones. The tolerance limit to water stress was extended for primed seed. Primed seeds were more sensible to accelerated aging