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31.
32.
The ‘Bologna process’ is promoting fundamental changes throughout European higher education. Education ministers appear determined to reach, by 2010, a significant convergence of the national educational systems. This implies the necessity of adapting curricula in terms of structures, contents, learning attributes, learning tools and assessment methods. The EC ‘Tuning’ project was set up in order to investigate the feasibility of this process on the basis of ‘available experience and recent developments in several of the Member states… particularly from previous and on-going European co-operation in the context of the Socrates programme’. The Tuning project, initially aimed at five areas only (mathematics, geology, business, history, educational sciences), was later extended to other areas, including engineering: synergy groups were formed for this purpose. This paper summarizes the final report of the Engineering Synergy Group, which examined the ‘tuning’ of engineering education (EE) into European higher education, taking advantage of the work of previous and current thematic networks, such as H3E, EUCEET and E4. A set of recommendations is presented in the final section of the paper.  相似文献   
33.
Photography     
The Portfolios of Ansel Adams (Boston: New York Graphic Society, 1977—$19.50)

Kelly Wise's Still Points (Addison House, Morgan's Run, Danbury, N.H. 03230—$8.95, paper)

Jeffrey Weiss and Herbert H. Wise, Good Lives (New York: Quick Fox, with distribution by Hyperion Press of Westport, Ct., 1977—$6.95, paper)

The Best of Photojournalism 2 (New York: Newsweek Books, 1978—$16.95/9.95)

Marious B. Peladeau's Chansonetta: The Life and Photographs of Chansonetta Stanley Emmons 1858-1937 (Dobbs Ferry, N.Y.: Morgan and Morgan, l977—$8.95)

A.D. Coleman's The Grotesaue in Photography (New York: Ridge Press/Summit Books [Simon and Schuster], 1977—$10.00 1 paper)

Francesco Scavullo, et al. Scavullo on Men (N.Y.: Random House, 1977—$15.00)

Barbra Walz and Bernadine Morris's The Fashion Makers: An Inside Look at America's Leading Designers (N.Y. :Random House, 1978— $15.00)

Charles Klamkin and Matthew Isenberg's Photographica: A Guide to the Value of Historic Cameras and Images (New York: Funk & Wagnalls, 1978—$15.95)

Genoa Caldwell, ed. The Man Who Photographed the World: Burton Holmes Travelogues, 1892-1938 (New York: Harry Abrams, 1977—$25.00)

Peter Pollack's The Picture History of Photography: From the Earliest Beginnings to the Present Day (New York: Harry Abrams, 1977—$8.95, paper)  相似文献   
34.
Accurate measurement of research productivity should take account of both the number of co-authors of every scientific work and of the different contributions of the individuals. For researchers in the life sciences, common practice is to indicate such contributions through position in the authors list. In this work, we measure the distortion introduced to bibliometric ranking lists for scientific productivity when the number of co-authors or their position in the list is ignored. The field of observation consists of all Italian university professors working in the life sciences, with scientific production examined over the period 2004–2008. The outcomes of the study lead to a recommendation against using indicators or evaluation methods that ignore the different authors’ contributions to the research results.  相似文献   
35.
Ultrasonography(US) and the new applications US elastography(USE) and contrast-enhanced US(CEUS) are used in the screening of thyroid nodules,for which fine-needle aspiration biopsy(FNAB) is the best single diagnostic test.The aim of the study was to compare the sensitivity,specificity,positive predictive value(PPV),and accuracy of the four examinations in nodules with cytological and histological diagnoses.The study used data from US,FNAB,USE(elasticity(ELX 2/1) index),and CEUS(Peak index and time to peak(TTP) index) evaluated in 73 thyroid nodules in 63 consecutive patients likely to undergo surgery.Cytological-histological correlation was available for 38 nodules.No correlation emerged between nodule size and cytological results.A significant(P=0.03) positive correlation between cumulative US findings and cytological results was found.In addition,significant correlations between cumulative US findings and cytology(P=0.02) and between cumulative US findings and histology(P<0.0001) were found.US showed the best specificity and PPV,and FNAB the best sensitivity.There was no significant difference in the ELX 2/1 index,Peak index,or TTP index among nodules subdivided according to cytological scores.No significant correlation was found between ELX 2/1 index,Peak index,and TTP index,on the one hand,and nodule size,US cumulative findings,cytology,and histology on the other hand.The sensitivity of the ELX 2/1 index was high,but its specificity was very low.The accuracy and PPV of USE were lower than those of the other procedures.Only the correlation between Peak index and cumulative US findings reached a value close to significance.Our ultimate aim is to minimise unnecessary thyroidectomy.US and FNAB continue to play a central diagnostic role.The use of a US score showed high specificity and PPV.The specificity of FNAB was low in this selected series because of the numbers of indeterminate cytological responses.USE and CEUS are innovative techniques that need to be standardized.The ELX 2/1 index,Peak index,and TTP index seem to be unrelated to histology.The best statistical data on USE and CEUS concerned their sensitivity and PPV,respectively.At present,USE and CEUS are too time-consuming and of limited utility in selecting patients for surgery.  相似文献   
36.
We propose a structural equation model, which reduces to a multidimensional latent class item response theory model, for the analysis of binary item responses with nonignorable missingness. The missingness mechanism is driven by 2 sets of latent variables: one describing the propensity to respond and the other referred to the abilities measured by the test items. These latent variables are assumed to have a discrete distribution, so as to reduce the number of parametric assumptions regarding the latent structure of the model. Individual covariates can also be included through a multinomial logistic parameterization for the distribution of the latent variables. Given the discrete nature of this distribution, the proposed model is efficiently estimated by the expectation–maximization algorithm. A simulation study is performed to evaluate the finite-sample properties of the parameter estimates. Moreover, an application is illustrated with data coming from a student entry test for the admission to some university courses.  相似文献   
37.
The sarcophagus containing the remains of Federico II, located in the Cathedral of Palermo (Sicily, Italy), was opened on 1998 to perform a multidisciplinary survey [1]. Next to the remains of Federico II and in close contact with them were laying two other skeletons belonging, according to historical records, to Pietro II di Aragona and to an anonymous person (“The Third Individual”), probably a woman. The bones appeared severely deteriorated. Chemical analysis performed on bone samples excluded that the bodies underwent some kind of embalming process. The analysis of mtDNA from bone samples taken from the three skeletons was successful in only one of the two labs involved. The HVR1-mtDNA sequence (region: from nt 16,035 to nt 16,395), obtained from the bone samples of Federico II and “The Third Individual” appear identical but bear double peaks at the same nucleotide positions, suggesting mixing (i.e. contamination) of different mtDNA types. The HVR1 sequence obtained from the bone sample of Pietro II di Aragona does not present double peaks and differ from the Cambridge Reference Sequence (CRS) at six nucleotide positions. Cloning experiment of the Federico II amplicon demonstrated that the mixed mtDNA types are only two: one identical to CRS, the other identical to the sequence of Pietro II di Aragona. A reconstruction of these data are proposed in the Discussion. Due to the problematic context in which this study was carried out (mixed and deteriorated biological material, failure to replicate results in two different labs), our results and reconstruction can only be offered on a tentative basis. It is hoped that the data presented in this study will reveal useful, for future comparison, if further molecular genetics research will be carried out on the royal dynasties that ruled Sicily in the early centuries of the past millennium.  相似文献   
38.
This study examines the relationship between students’ evaluation of teaching effectiveness and the instructor's characteristics, based upon an original data set from an Italian university. Age and seniority (academic rank) are both found to affect negatively teaching evaluation, although the effect of rank depends heavily on the discipline. Profession-oriented disciplines are more poorly evaluated and exhibit stronger effects for rank; in the same disciplines, many courses are taught by non-faculty members, who are evaluated poorly. Gender is also found to be relevant, as it affects students’ evaluation of female instructors, although this result might be biased by the gender composition of classes. Past research outputs, as measured by an instructor's publication track record, has a positive impact on students’ evaluation of teaching effectiveness, although the rate of impact decreases with the amount of publications.  相似文献   
39.
According to the knowledge-spillovers theory of entrepreneurship (KSTE), local knowledge spillovers affect entrepreneurial dynamics, because of knowledge asymmetries and uncertainty. Most of the empirical literature has tested this hypothesis using a measure of local knowledge stock. This paper is aimed at extending the framework by showing that the domains over which local knowledge spans are also important. The paper investigates the impact of the configuration of local knowledge bases on new firm formation dynamics by combining the KSTE framework with the recombinant knowledge approach. Local knowledge bases emerge from the combination of different knowledge inputs. These inputs may be closely or loosely related to one another. Technological differentiation and the relatedness degree of local competences can be interpreted as characteristics of the local knowledge base interacting with the knowledge filter and the entrepreneurial absorptive capacity. The paper proposes a taxonomy of regional modes of knowledge production and investigates new firm formation in 92 Italian NUTS 3 regions observed over the 1995–2009 time span. The results confirm that the availability of local knowledge pools is important, and show that the ‘rich integration’ mode is the configuration that favours the entrepreneurial process. Finally, the policy implications and avenues for further research are presented and discussed.  相似文献   
40.
This paper explores individual cognitive mechanisms of knowledge-sharing (KS) motivation and intends to provide more effective measures to judge and influence individual inclinations toward KS in a cross-cultural context. First, it investigates four cognitive processes based on an individual's commitment toward KS, and studies through these processes how an individual's intrinsic motivation derived from social norms and personal norms, and extrinsic motivation derived from reward and punishment make concerted efforts to shape the ultimate intention to KS. Then, Hofstede's cultural framework is integrated to theorize cross-cultural differences in these processes. Finally, through a survey conducted in China and the US, the aforementioned theoretical analysis is confirmed. The results indicate that intrinsic motivation operates through affective commitment: internalization, identification and conformity; rewards have little direct effects on final intentions but they will influence attitude indirectly via identification; punishment for not sharing splits on cultural lines: Chinese tend to comply to avoid opposing their group and Americans tend to follow a more individualistic path; Chinese have more tendencies to conform to teams’ opinions and tend to favor KS as a means of achieving harmonious relationships, while Americans engage in KS because self-worth is viewed as the manifestation of their individual determinations.  相似文献   
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