1,720,981 research outputs found
Pheromone detection of the introduced forest pest Megaplatypus mutatus (=Platypus mutatus) (Chapuis) (Platypodinae, Curculionidae) in Italy
Full text linkMegaplatypus mutatus (Chapuis) (=Platypus mutatus), an ambrosia beetle native to South America, attacks standing live trees of a wide range of forest and fruit tree species, and it is particularly damaging to commercial poplar plantations. In 2000, M. mutatus was observed for the first time in Italy, in the province of Caserta, near Naples. The development of a pheromone-based monitoring system, for detecting the spread and for managing M. mutatus infestations, is an important goal for both European and South American control and surveillance programs. Using a three component pheromone blend developed in Argentina into commercial funnel traps we were able to asses the level of dispersion of this pest in the Italian Campania region. Insects were captured in all the plantations suspected of being infested based on the presence of active parental and larval galleries. We also provide the first report of the attack followed by completion of the life cycle of M. mutatus in European hazelnut, Corylus avellana L. (Betulaceae), an important nut species native to Europe and Western Asia.Fil: Gonzalez Audino, Paola Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Investigación y Desarrollo Estratégico para la Defensa. Ministerio de Defensa. Unidad de Investigación y Desarrollo Estratégico para la Defensa; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas para la Defensa. Centro de Investigación de Plagas e Insecticidas; ArgentinaFil: Griffo, Raffaele. Servizio Fitosanitario Regione Campania; ItaliaFil: Gatti, Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas para la Defensa. Centro de Investigación de Plagas e Insecticidas; ArgentinaFil: Gianni Allegro. Istituto di Sperimentazione per La Pioppicoltura; ItaliaFil: Zerba, Eduardo Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Investigación y Desarrollo Estratégico para la Defensa. Ministerio de Defensa. Unidad de Investigación y Desarrollo Estratégico para la Defensa; Argentin
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Cardiac Rehabilitation in Very Old Patients: Data From the Italian Survey on Cardiac Rehabilitation-2008 (ISYDE-2008)-Official Report of the Italian Association for Cardiovascular Prevention, Rehabilitation, and Epidemiology
No full textUsing data from the Italian SurveY on carDiac rEhabilitation-2008 (ISYDE-2008), this study provides insight into the level of implementation of cardiac rehabilitation (CR) in very old cardiac patients. Data from 165 CR units were collected online from January 28 to February 10, 2008. The study cohort consisted of 2,281 patients (66.9 +/- 11.8 years): 1,714 (62.4 +/- 9.6 years, 78% male) aged = 75 years (80.8 +/- 4.5 years, 59% male). Compared with adults, a higher percentage of older patients were referred to CR programs after cardiac surgery or acute heart failure and showed more acute phase complications and comorbidity. Older patients were less likely discharged to home, more likely transferred to nursing homes, or discharged with social networks activation. Older patients had higher death rate during CR programs (odds ratio = 4.6; 95% confidence interval = 1.6-12.9; p = .004). The ISYDE-2008 survey provided a detailed snapshot of CR in very old cardiac patients
Frequent coexistence of chronic heart failure and chronic obstructive pulmonary disease in respiratory and cardiac outpatients: Evidence from SUSPIRIUM, a multicentre Italian survey
No full textBackground: Chronic heart failure (CHF) and chronic obstructive pulmonary disease (COPD) frequently coexist but concurrent COPD+CHF has been little investigated. Design: This multicentre survey (SUSPIRIUM) was designed to evaluate: the prevalence of COPD in stable CHF and CHF in stable COPD; diagnostic/therapeutic work-up for concurrent COPD+CHF; clinical profile of patients with COPD+CHF; predictors of COPD in CHF and CHF in COPD. Methods: A 5-month-long cross-sectional prospective observational survey was conducted in 10 cardiac and 10 respiratory connected outpatient units. Results: The prevalence of CHF in the 378 surveyed COPD patients was 11.9% (95% confidence interval 8.8-16.6) and the prevalence of COPD in 375 CHF patients was 31.5% (95% confidence interval 26.8-36.4). Diagnostic tests for suspected comorbidity were prescribed in 21.6% and 22.9% of COPD and CHF patients, respectively. Patients with coexisting CHF+COPD had a higher incidence of hypertension, physical inactivity and more frequently a GOLD score of 3 or greater. Compared to CHF only, CHF+COPD patients were significantly older, more frequently smokers, at worse respiratory risk and in a higher New York Heart Association class. Conversely, hypercholesterolaemia, a family history of ischaemic heart disease, fluid retention and comorbidities were more frequent in COPD+CHF than COPDonly patients. At multivariate analysis, a GOLD score of 3 or greater in CHF strongly predicted coexistent COPD (odds ratio 8.985, P<0.0001) as did a history of other respiratory diseases (5.184, P<0.0001). A history of ischaemic heart disease (4.868, P<0.0001), atrial fibrillation (3.302, P<0.0001) and sedentary lifestyle (2.814, P<0.004) predicted coexistent CHF in COPD. Conclusion: The high prevalence of COPD+CHF calls for integrated disease management between cardiologists and pulmonologists. SUSPIRIUM identifies which cardiac/pulmonary outpatients should be screened for the respective comorbidity
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe 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
Microwaves Induce Histological Alteration of Ovaries and Testis in Rhynchophorus ferrugineus Oliv. (Coleoptera: Curculionidae)
Full text linkThe Red Palm Weevil (RPW) is one of the major pests of palms, frequently leading to the plants death. Action plans and the development of bio/physical strategies to contrast RPW diffusions are strongly recommended due to the serious concerns related to environmental pollution and insects’ resistance to chemicals. In the present study, we investigated morphological alterations of the ovaries and testes in adult RPW exposed to 2.45 GHz for 5, 15, and 30 s. During these treatments, the relative increase in temperature and the days of survival after irradiation were monitored. Then, RPWs were processed for macroscopical and microscopical analysis. Histological lesions of the ovaries and testes were characterized by the degeneration and necrosis of germinal cells, which increased with the increase in the time of irradiation and the temperature. By the same token, an increase in the temperature of irradiated insects was associated with a decrease in their survival time. These observations lead us to conclude that MWs could represent a useful tool for reducing or eliminating the reproductive capacity of this dreaded insect
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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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