1,720,956 research outputs found
Effects of spray programs in vineyard and different type of sun-drying system on formation of ochratoxin A on raisins
No full text3rd International Symposium on Postharvest Pathology - Using Science to Increase Food Availability -- JUN 07-11, 2015 -- Bari, ITALYTurkey is the biggest raisin producer and exporter country in the world. One of the major problems on raisins is the mycotoxin formation, especially ochratoxin A (OTA), produced by two main genera of fungi (Aspergillus and Penicillium). In this study, effects of preharvest spray programs in vineyards and different types of sun drying systems were examined on formation of OTA on raisins in Manisa, Sarigol, Turkey. Considering the Aspergillus spp. contamination on grapes, a spraying program was established. In the same vineyard a non-spraying parcel was kept as a control. The spraying program, farmer's program and control were compared in three separate parcels. The spraying program was started after the last fungicide applications for powdery mildew in the vineyard. Before harvest the disease development was evaluated in bunches in vineyard. After harvest, grapes were sun dried on concrete surface and soil ground. Raisins were packed into the commercial sacks and polyethylene bags. Later they were separated in two parts and stored at room temperature and 2.5 degrees C for 8 months. OTA analyses were carried out on fresh berries and after drying on raisins. It was also repeated after two months of storage of raisins at different storage conditions. The microbial load was tested on raisins during storage. The greatest microbial loads by Aspergillus spp. was found on raisin dried on soil ground, while the lowest microbial load was obtained from raisins dried on concrete surface and kept in cold storage. Preharvest fungicides applications reduced the growth of Aspergillus spp. population. After two months of storage OTA in raisins was not detected in all applications.Int Soc Hort Sc
Effects of Different Modified Atmosphere Packing on Storage Quality and Decay Development of 'Hicaznar' Pomegranates (Punica granatum L.)
No full text7th International Postharvest Symposium -- JUN 25-29, 2012 -- Kuala Lumpur, MALAYSIAIncreasing pomegranate production in the world requires appropriate conditions to preserve quality during prolonged storage and transport. Modified atmosphere (MA) packaging provides long storage period, maintains fruit quality and reduces decay development for four months or more after harvest. There are different types of bags used for pomegranate with different quality. In this study, the effects of a preharvest spray program and different MA packaging materials were evaluated on the quality and decay development of 'Hicaznar' pomegranate. Four different MA packages were used on unsprayed and sprayed fruit. Fruit were packed into modified atmosphere packing and stored at 6 degrees C for four months. Decay development and quality parameters were examined at two months intervals. One of the local made MA packing materials was found to be not able to maintain the fruit quality even at the second month of storage. However, the combination of preharvest spraying program and three different MA packages gave almost the same results in terms of pomegranate quality. The decay development was also very high on unsprayed fruit packed with local MA packaging material. The decay development on sprayed fruit was almost inhibited at preharvest stage and for two months in MA packaging.Int Soc Hort SciTurkish Scientific and Technical Research Council (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [110 O 624]This study was funded by the Turkish Scientific and Technical Research Council (TUBITAK) under grant 110 O 624
Effects of Different Modified Atmosphere Packing on Storage Quality and Decay Development of 'Hicaznar' Pomegranates (Punica granatum L.)
No full textIncreasing pomegranate production in the world requires appropriate conditions to preserve quality during prolonged storage and transport. Modified atmosphere (MA) packaging provides long storage period, maintains fruit quality and reduces decay development for four months or more after harvest. There are different types of bags used for pomegranate with different quality. In this study, the effects of a preharvest spray program and different MA packaging materials were evaluated on the quality and decay development of 'Hicaznar' pomegranate. Four different MA packages were used on unsprayed and sprayed fruit. Fruit were packed into modified atmosphere packing and stored at 6 degrees C for four months. Decay development and quality parameters were examined at two months intervals. One of the local made MA packing materials was found to be not able to maintain the fruit quality even at the second month of storage. However, the combination of preharvest spraying program and three different MA packages gave almost the same results in terms of pomegranate quality. The decay development was also very high on unsprayed fruit packed with local MA packaging material. The decay development on sprayed fruit was almost inhibited at preharvest stage and for two months in MA packaging
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Sensivity against some fungicides and molecular characterization of Botrytis cinerea isolates on grapes in Aegean region
No full text3rd International Symposium on Postharvest Pathology - Using Science to Increase Food Availability -- JUN 07-11, 2015 -- Bari, ITALYBotrytis cinerea causing gray mold, is the most destructive pathogen on grapes. The intensive use of fungicides to control the disease leads to the acquisition of resistance by the pathogen and increased residues on grapes. In this study, B. cinerea isolates, collected from the vineyards in the Aegean Region, were tested for in vitro and in vivo sensitivity to the fungicides pyrimethanil, iprodione, fenhexamid, cyprodinil+fludioxonil, and boscalid. According to EDso values, the fungicides pyrimethanil and iprodione showed low effectiveness in reducing mycelial growth of isolates, while fenhexamid and cyprodinil+fludioxonil were highly effective. It was observed that at 5-10 mu g mL(-1), pyrimethanil and iprodione did not inhibit mycelia growth of 50 and 70% of B. cinerea isolates, respectively. Cyprodinil+fludioxonil mixture was the most effective in inhibiting mycelial growth of isolates, both in vitro and in vivo conditions. Cyprodinil+fludioxonil at dose of 3 lig mL-1 inhibited spore germination of all isolates of the pathogen. All isolates had a point mutation (G143A), which was detected with allel-specific primers BcAR-F and BcAR-R. Seven B. cinerea isolates were grouped in transposa. The presence of flipper element was not detected using F300 and F1500 primers.Int Soc Hort Sc
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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