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Noemi Orazi Fulvio Mercuri Ugo Zammit Stefano Paoloni Massimo Marinelli Augusto Giuffredi 《文物保护研究》2016,61(4):236-244
In this work we investigate various aspects of the finishing process in ancient bronze sculptures by means of active infrared thermography (IRT). Active IRT provides information on surface and sub-surface features of the investigated artefact, by analysing the heat diffusion process induced within the sample by appropriate thermal stimulations usually produced by absorption of light emitted by different sources. The aim of this research is, in particular, to investigate the processing of bronze surfaces, revealing repairs like plugs, fillings, local castings and concealed marks. 相似文献
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Science &; Education - 相似文献
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Massimo Ciuffo Jane Myers Massimo Ingrassia Antonio Milanese Maria Venuti Ausilia Alquino Alice Baradello Giacomo Stella Antonella Gagliano 《Reading and writing》2017,30(8):1667-1686
The silent reading fluency is not an observable behaviour and, therefore, its evaluation is perceived as more challenging and less reliable than oral reading fluency. The present research is aimed to measure the silent reading speed in a sample of proficient students, assessed by an original silent reading fluency task, based on behavioural indicators of the silent reading speed. A total of 325 high school and university skilled students (age range 14–23 years) have been assessed using 3 tasks aimed to evaluate the oral reading speed (lists of words, lists of pseudowords and narrative text) and one task aimed to measure the silent reading speed. The average silent reading speed in our sample was around 12.5 syll/sec, almost double than the oral reading speed rate. The silent reading speed had an increase from 9.13 to 12.38 syll/sec from the first year of high school (ninth grade) to the fifth year of University. Conversely, the oral reading speed remained substantially unchanged for the entire academic course. Our results showed that the reading fluency in silent mode tends to increase up to the last years of University and it may be considered the most rapid and efficient reading mode. This study highlights the importance of including both silent and oral reading modes in the assessment of the older students and young adults, since silent reading is the main reading mode for proficient readers. 相似文献
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Giuseppe Lippi Massimo Daves Camilla Mattiuzzi 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2014,24(1):80-88
The use of contrast media such as organic iodine molecules and gadolinium contrast agents is commonplace in diagnostic imaging. Although there is widespread perception that side effects and drug interactions may be the leading problems caused by these compounds, various degrees of interference with some laboratory tests have been clearly demonstrated. Overall, the described interference for iodinate contrast media include inappropriate gel barrier formation in blood tubes, the appearance of abnormal peaks in capillary zone electrophoresis of serum proteins, and a positive bias in assessment of cardiac troponin I with one immunoassay. The interference for gadolinium contrast agents include negative bias in calcium assessment with ortho-cresolphthalein colorimetric assays and occasional positive bias using some Arsenazo reagents, negative bias in measurement of angiotensin converting enzyme (ACE) and zinc (colorimetric assay), as well as positive bias in creatinine (Jaffe reaction), total iron binding capacity (TIBC, ferrozine method), magnesium (calmagite reagent) and selenium (mass spectrometry) measurement. Interference has also been reported in assessment of serum indices, pulse oximetry and methaemoglobin in samples of patients receiving Patent Blue V. Under several circumstances the interference was absent from manufacturer-supplied information and limited to certain type of reagents and/or analytes, so that local verification may be advisable to establish whether or not the test in use may be biased. Since the elimination half-life of these compounds is typically lower than 2 h, blood collection after this period may be a safer alternative in patients who have received contrast media for diagnostic purposes. 相似文献
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Firms’ genetic characteristics and competence-enlarging strategies: A comparison between academic and non-academic high-tech start-ups 总被引:1,自引:0,他引:1
Massimo G. Colombo Evila Piva 《Research Policy》2012,41(1):79-92
This paper argues that academic high-tech start-ups exhibit peculiar “genetic characteristics” that leave an enduring imprint on firm development. We formulate a series of hypotheses on the effects of such genetic characteristics on the post-entry strategies that academic high-tech start-ups adopt to enlarge their initial competence endowments. In the empirical section, we use matched-pair statistical techniques and run several regressions to test the theoretical hypotheses. Our findings contribute to the literature on the antecedents of the strategies adopted by academic high-tech start-ups. They also allow us to derive implications for academic entrepreneurs, university managers and policy makers. 相似文献
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We study how scholar collaboration varies across disciplines in science, social science, arts and humanities and the effects of author collaboration on impact and quality of co-authored papers. Impact is measured with the aid of citations collected by papers, while quality is determined by the judgements expressed by peer reviewers. To this end, we take advantage of the dataset provided by the first-ever national research assessment exercise of Italian universities, which involved 20 disciplinary areas, 102 research structures, 18,500 research products, and 6661 peer reviewers. Collaboration intensity neatly varies across disciplines: it is inescapable is most sciences and negligible in most humanities. We measured a general positive association between cardinality of the author set of a paper and citation count as well as peer quality of the contribution. The correlation is stronger when the affiliations of authors are heterogeneous. There exist, however, notable and interesting counter-examples. 相似文献
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BONCIAndrea LONGHISauro MONTERIUAndrea VACCARINIMassimo 《浙江大学学报(A卷英文版)》2005,6(2):110-117
Recent results on the development of a navigation system for a smart wheelchair are presented in this paper. In order to reduce the development cost, a modular solution is designed by using commercial and low cost devices. The functionalities of the tracking control system are described. Experimental results of the proposed assistive system are also presented and discussed. 相似文献
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差异的世界:大学排名的全球调查 总被引:3,自引:2,他引:3
本文研究了全球19个大学排行榜,描述了排行榜作为质量评价手段是如何运作的,详细讨论了现有排名系统使用的质量指标并归纳出在排名上存在的不同地域模式。本文发现,世界上的主要排行榜之间没有多少联系,它们采用差别很大的指标和权重来评估大学。但是,有一些大学,无论是用何种的指标和权重,都会居于排行榜的前列。本文还探讨了与目前流行的严格按分数高低排名的“排行榜”不同的做法,并得出了结论。 相似文献
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Massimo Papini Roberto Leonetti Maurizio Timpanelli Luca Mercatali Gavino Maciocco 《International journal for the advancement of counseling》1999,21(3):221-230
This report deals with a program to train the General Practitionners and Pediatricians (P&;P) in child and adolescent mental health (CAMH) counselling, undertaken by the Community Service child neuropsychiatrists (CNs) in the Mugello, a mountain region near Florence (Italy) of approx. 500 square miles, with about 58,000 residents of which 9,000 under eighteen years of age. The program began in 1996 and, after an organizational phase, the P&;P's professional interests and needs dealing with CAMH were tested (review phase). The remarkable P&;P's interest and motivations in CAMH were confirmed by the significant percentage (about 50%) of voluntary attendance and the high percentage (about 91%) of active participation in the meetings and by the 50% increment of first referrals to specialists during a test-period lasting two month (February--March 1997/96). A close-ended questionnaire investigated the most frequent CAMH problems faced by the P&;P, which prevalently turned out to be ordinary events. The high rate (about 54%) of missing responses to questions about the P&;P's possibility to aknowledge their own sources of knowledge on such problems and the high positive response rate (about 70%) indicating a non professional source of knowledge reveal the P&;P's awareness of professional insecurity in CAMH, and this was the cause of their difficulties in distinguishing between ordinary events and psychopathology. The P&;P replied positively in 93% of the cases to the question “do you think it is useful for your professional self-confidence to examine these problem areas in depth?” The method that they preferred proved to be “continuing training courses” (35%). These results provided the basis for the implementation phase with a continuing professional training program. The P&;P's awareness of professional insecurity and the admission of their need for training and information in CAMH motivate their requests for CNs Counselling reference in order to deal with psychiatric cases, while the P&;P's humane approach with patients, revealed during the meetings and in the questionnaire, simplifies the task of training the P&;P to become counsellors in CAMH problems which are less severe. 相似文献