1,721,164 research outputs found
Impugnazioni e regole di giudizio nella legge di riforma del 2006. Dai problemi di fondo ai primi responsi costituzionali
Ethylene detection methods in post-harvest technology: A review
The detection of the vegetal hormone ethylene at low concentrations is today a critical issue, in particular, but not only, in horticultural industry. In fact, even at sub ppm concentration, ethylene works as natural ripening agent and, in addition, it is a marker of the ripening stage of several fresh products, whose wasting away causes losses for millions dollars every year. For these reasons, in the last decade, an increasing demand for robust, cheap and accurate ethylene sensors has been recorded. In this paper, the recent progresses in the field of ethylene detection are briefly reviewed, with particular attention to those methods being suitable for the monitoring of fresh products. Furthermore, a short explanation of the working principle of the various devices is provided. © 2014 Elsevier B.V
Low-Temperature capacitive sensor based on perovskite oxides
Energy, environmental and social issues drive towards the green political economy and the development of advanced technologies, promoting renewable energy sources, improving energy conversion efficiency and reducing exhaust gas emissions. The development of sustainable technologies requires strategic research in the area of gas sensors for monitoring air quality, controlling gas emissions and optimizing combustion processes. Solid state sensors are the most attractive one because of their simplicity in function, small size and low cost. The aim of this work is to synthetize and characterize strontium titanate and test its sensing performance. The prepared sensor device shows significant sensitivity and response rate at roomtemperature. However, because of the low recovery rate, the regeneration of the sensor has to be made at high temperature for promoting the decomposition of the carbonates formed on the perovkite surface. © 2015 AIP Publishing LLC
Drug evaluation: TA-2711E in the treatment of active distal ulcerative colitis
Tanabe AAI LLC, a joint venture between Tanabe Seiyaku Co Ltd and aaiPharma Inc, is developing TA-2711E, an enema formulation of Tanabe's mucosal protectant ecabet, for the potential treatment of ulcerative colitis. By July 2004, phase III trials for ulcerative colitis had been initiated in Japan and phase II studies were ongoing in Europe and the US; this remained the case in May 2006
Going Beyond Counting First Authors in Author Co-citation Analysis
The 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
“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
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