124,584 research outputs found
Physiological responses of sweet pepper to high temperatures before storage at chilling temperatures
No full textGoing Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
Dispelling the Myths Behind First-author Citation Counts
No full textWe 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
Polyphenol traits, antimicrobial property and consumer preference of ‘Italian Red Passion’ apple genotypes and cultivar ‘Annurca’
No full textApple polyphenols may promote health and reduce the risk of chronic disease by various mechanisms, including antioxidant, antiproliferative, and cell signaling effects. Furthermore, these compounds are active as repressors of antimicrobial activity. Apple plants from M3, M4 and M5 genotypes, belonging to the red-flesh group 'Italian Red Passion' (IRP), generated from open pollination, show red coloration of flesh, leaf and flower. This phenotype is due to a mutation in the promoter region of MYB10, a gene encoding a transcription factor that up-regulates genes coding enzymes involved in apple anthocyanins production. Comparative analysis of HPLC data confirmed that extracts from fruit and leaf samples of IRP lines contained a larger array of compounds compared to samples of the 'Annurca' apple cultivar. These compounds belong to different chemical groups, such as anthocyanins, hydroxycinnamic acids, flavonols, procyanidins and dihydrochalcones. Fruit and leaf extracts of IRP exhibited antimicrobial activity against Escherichia coli, Bacillus subtilis and Pseudomonas aeruginosa. The extracts' antimicrobial activities were found to be dependent on the extraction solvent used. In addition, sensorial analysis highlights the good global preference of IRP red-flesh apples, which ranks similar to commercial cultivars
XI International Controlled and Modified Atmosphere Research Conference
No full textHigh quality wine requires high quality grape. High quality grape means good aromatic properties and texture, excellent phenols panorama, and salubrity. Ozone is known as a great sanitizing agent but little is known on its effect on grape metabolism. Grape bunches of 'Sauvignon Blanc' (Vitis vinifera L.) were hand harvested at the end of day in Castello de "La Sala" winery, placed in perforated boxes in one single layer and then stacked in a cold room at 10°C and 70% RH (relative humidity). Ozone treatment (1.5 g h-1) started immediately and bunches were sampled before and after treatment which lasted 4, 8, and 16 h. The control sample consisted in grape bunch treated in similar way, placed in another cold room without ozone treatment. Total phenols on dry weight (d.w.) basis increased of 10% after 8 and 16 h treatment compared to the control sample. Hydroxycinnamic acids increased 50-100% in ozone-treated sample. Even total carotenoids raised in ozonetreated sample after 16 h. Glycosilated volatiles organic compounds (VOCs) increased in ozone-treated samples while decreased in untreated one; in contrast the free VOCs, which means the perceptible aroma compounds, were higher in untreated grape. This is an important result because the grape for vinification must have many glycosilated VOCs before fermentation which are released during the process by yeasts
Postharvest Ozone Fumigation of Grapes (cv Sangiovese) Differently Affects Volatile Organic Compounds and Polyphenol Profiles of Berries and Wine
No full textConsumers are more and more oriented towards the purchase of safer food and beverages, which is pushing the wine sector to find alternatives to the use of sulfur dioxide. Ozone (O3) is already applied in the wine industry to produce sulfur dioxide-free wines through the patented method Purovino®. The aim of this two-year study was that of evaluating whether the postharvest treatment of grapes with ozone affects volatile organic compounds (VOCs) and polyphenol profile in berries, and in turn, wine composition. Grape bunches (Vitis vinifera L.) of cv Sangiovese were fumigated overnight with gaseous ozone (max 20 g·h−1 with 6% w.w−1 of ozone) in a cold room at 4°C (±0.5). After treatment, grapes were processed into wine. In grapes, ozone treatments increased total polyphenol and flavonoid content and upregulated specific genes (phenylalanine ammonia lyase, VvPAL, flavanol synthase 1, and VvFLS1) involved in polyphenol biosynthesis. Wine obtained from ozone-treated grapes had higher flavanol content than the control. Fumigation only slightly affected the different VOC classes of grapes and wine, including aroma compounds derived from the lipoxygenase (LOX) pathway. Although a season-dependent effect was observed, results showed that postharvest ozone treatments applied to avoid the use of sulfur dioxide introduced limited but, in general, positive modifications to grape and wine composition. This information provides assurance to winemakers that the maintenance of wine quality and typicity will be guaranteed when using ozone treatments
Nebulized water cooling of the canopy affects leaf temperature, berry composition and wine quality of Sauvignon blanc.
No full textPragmatic Case Studies as a Source of Unity in Applied Psychology
No full textTo unify or not to unify applied psychology: that is the question. In this article we review pendulum swings in the historical efforts to answer this question—from a comprehensive, positivist, “top-down,” deductive yes between the 1930s and the early 60s, to a postmodern no since then. A rationale and proposal for a limited, “bottom-up,” inductive yes in applied psychology is then presented, employing a case-based paradigm that integrates both positivist and postmodern themes and components. This paradigm is labeled “pragmatic psychology” and, its specific use of case studies, the “Pragmatic Case Study Method” (“PCS Method”). We call for the creation of peer-reviewed journal-databases of pragmatic case studies as a foundational source of unifying applied knowledge in our discipline. As one example, the potential of the PCS Method for unifying different angles of theoretical regard is illustrated in an area of applied psychology, psychotherapy, via the case of Mrs. B. The article then turns to the broader historical and epistemological arguments for the unifying nature of the PCS Method in both applied and basic psychology.Peer reviewe
Dr. Edwin Wright Collection: Author Unknown
No full textNotes - The author relates several short stories about his neighbours including Alex McDonell, homesteading and life around Meanook and Athabasca (1 page
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