1,145 research outputs found

    EFFECTS OF ORGANIC AND CONVENTIONAL N-FERTILIZATION ON QUALITY TRAITS IN CORIANDER (CORIANDRUM SATIVUM L.)

    Get PDF
    In organic cropping management of Medicinal and Aromatic Plants, the best quality expression is crucial to gain satisfactory incomes. Coriander (Coriandrum sativum L.) is an annual herbaceous plant with a commercial value due to the typical scent of its fruits (commonly termed “seeds”), rich in a pale yellow oil (1-2% in small-sized types, 0.2-0.5% in large-sized ones). Several studies have been done for determining the composition of volatile fraction of Coriander, which was found to vary also as a consequence of cropping techniques, including nitrogen fertilization. In order to gain useful information about the effects, if present at all, of organic N fertilization on Coriander quality in terms of volatiles composition pattern, a three-year trial (2004-2006) was carried out using different types and rates of organic and conventional N fertilizers. Volatile composition of fruits was obtained by means of GC-MS and data were evaluated by multivariate statistical analysis. The most representative compound are linalool, followed by camphor, geranyl acetate and geraniol. The group partition was mainly due to different quantitative ratio of compounds; the differences in volatile composition, however, followed a scheme more resembling the cropping year than the fertilization management

    N USE AND PARTITIONING IN CORIANDER (CORIANDRUM SATIVUM L.) AFTER ORGANIC AND CONVENTIONAL N FERTILIZATION

    Get PDF
    In coriander, a well known spice herb, many studies concerning the effect of N fertilization have been conducted in special areas where the cultivation of such plant has a major importance, such as India. Limited information is available as concerns the response of coriander to N fertilization under Mediterranean climatic conditions, above all when organic N fertilizers (mandatory when organic cropping management is chosen) are used. This work refers about some observations realised from 2004 to 2006 by an experiment on organic and mineral N fertilization techniques in coriander, carried on in the experimental farm “Sparacia” (Cammarata, AG, Sicily). Similarly to what suggested for other species, each year at harvest time, for each fertilizer treatment, seeds yield and plant biomass were weighed and the respective N content was determined in order to compare N plant uptake with total and mineral N measured in the soil before and after cropping cycle. From such data a few indices were calculated in order to get information about the efficiency of use by plants of the tested N forms. Some differences in N partitioning and use efficiency according to treatment were noticed, suggesting an overall higher efficiency of N chemical fertilizers

    Do Governments Sway European Court of Justice Decision-making?: Evidence from Government Court Briefs

    Get PDF
    The European Court of Justice (ECJ) is commonly described as a powerful international force for legal integration. Indeed, past studies indicate that the ECJ has developed a supranational legal order that trumps national law in a broad range of economic policy areas. But this depiction of an autonomous Court driving European integration beyond the desires of the member-states is dubious. We would expect the Court, whose existence depends on an international treaty and whose authority depends on national enforcement, to have strong incentives to decide cases with an eye to concerns of national governments. We argue that past studies -- which were based on a small number of case studies -- cannot demonstrate whether the Court is or is not sensitive to member-state interests. Based on novel dataset of all ECJ decisions over three years, we develop an empirical test of member-state influence on ECJ decisions and demonstrate that the Court does temper its decisions to accommodate member-state concerns.

    Banda-Ortiz v. Gonzales: A Catch-22 for the Twenty-First Century

    Get PDF
    Symposium on Religion, Religious Pluralism, and the Rule of Law: Not

    Durability testing at one atmosphere of advanced catalysts and catalyst supports for automotive gas turbine engine combustors, part 1

    Get PDF
    The durability of catalysts and catalyst supports in a combustion environment was experimentally demonstrated. A test of 1000 hours duration was completed with two catalysts, using diesel fuel and operating at catalytically supported thermal combustion conditions. The performance of the catalysts was determined by monitoring emissions throughout the test, and by examining the physical condition of the catalyst core at the conclusion of the test. The test catalysts proved to be capable of low emissions operation after 1000 hours diesel aging, with no apparent physical degradation of the catalyst support

    Progettazione di antenne low-profile su schermi ad alta impedenza per applicazioni satellitari in banda S

    Get PDF
    Progettazione di due antenne a basso profilo in polarizzazione circolare per applicazioni satellitari in banda S. Le antenne sono realizzate su conduttori magnetici artificiali (AMC), al fine di ottenere elevati guadagni con una struttura compatta. I piani di massa magnetici artificiali sono realizzati per mezzo di superfici selettive in frequenza (FSS)

    Advanced Optimization Techniques in Electromagnetics: Antennas and Space Applications

    Get PDF
    Questa tesi di dottorato è attinente a problematiche di ottimizzazione nel campo dell’elettromagnetismo applicato. In particolare, sono state oggetto di studio due tecniche stocastiche basate su principi evoluzionistici: gli Algoritmi Genetici ed il Particle Swarm Optimization. La prima è stata applicata per l’ottimizzazione di superfici con particolari proprietà elettromagnetiche atte a migliorare le prestazioni di comuni elementi radianti. La seconda tecnica è stata implementata per risolvere un problema di modellizazione equivalente, nell’ambito di applicazioni spaziali. In particolare, l’obiettivo é quello di caratterizzaere e predire le proprietà magnetostatiche di satelliti mediante un modello a dipoli magnetici equivalente

    A comparison of two methods of formant frequency estimation for high-pitched voices

    Get PDF
    This study sought to test the accuracy of two methods of formant frequency estimation: artificial laryngeal stimulation via neck placement and via oral tube insertion. Twenty males between the ages of 18 and 45 performed the following three tasks: (1) four seconds of sustained vowel, (2) two seconds of sustained vowel followed by two seconds of artificial laryngeal stimulation via neck placement while ceasing vocal fold vibration and holding structures of the vocal fold filter in a fixed position, and (3) four seconds of sustained vowel, the last two of which were accompanied by artificial laryngeal stimulation via an oral insertion. These tasks were performed on the vowels/a/ and /i/. Four formant frequencies were measured for each task at second one and second three. These measures were compared across second one and second three, as well as across all three tasks. Group means as well as individual subject analysis were compared

    The CHAIN-REDS Semantic Search Engine

    Get PDF
    e-Infrastructures, and in particular Data Repositories and Open Access Data Infrastructures, are essential platforms for e-Science and e-Research and are being built since several years both in Europe and the rest of the world to support diverse multi/inter-disciplinary Virtual Research Communities. So far, however, it is difficult for scientists to correlate papers to datasets used to produce them and to discover data and documents in an easy way. In this paper, the CHAINREDS project’s Knowledge Base and its Semantic Search Engine are presented, which attempt to address those drawbacks and contribute to the reproducibility of science
    corecore