Ellis Island Nation: Immigration Policy and American Identity in the Twentieth Century Robert L. Fleegler. Philadelphia: University of Pennsylvania Press, 2013.     

Tim Prchal 《Journal of American culture (Malden, Mass. : 2003)》2014,37(3):348-349

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In Conclusion: Emerging From Post-Conflict to a New Beginning     

Kirk Anderson  J. Tim Goddard 《Interchange》2010,41(2):201-203

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Scanning the Potential for Using QR Codes in the Classroom     

Cory Robertson  Tim Green 《TechTrends》2012,56(2):11-12

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Digital Flashcard Tools     

Tim Green  Baynard Bailey 《TechTrends》2010,54(4):16-18

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Markets in education: the impact of school choice policies in one market context in New Zealand     

Tim Stubbs 《International Studies in Sociology of Education》2013,23(2):97-124

The publication of Trading in Futures and When Schools Compete helped give empirical support to the view that choice policies increased differences between schools. However, dispute about this research and changes in policy mean that our understanding of the impact of school choice policies in New Zealand remains partial. This paper aims to address continued uncertainty about the impact of school choice policies in New Zealand. It presents the results of a study that drew upon qualitative data gathered in interviews with school principals and on administrative data on the enrolment patterns in the same competition space explored by the Trading in Futures research. The data show that periods of greatest instability in enrolments occurred around the time of change in regulations.  相似文献   

Co‐Curation and the Public History of Science and Technology     

Tim Boon 《Curator: The Museum Journal》2011,54(4):383-387

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Electronic detection of dielectrophoretic forces exerted on particles flowing over interdigitated electrodes     

Nikolic-Jaric M  Romanuik SF  Ferrier GA  Cabel T  Salimi E  Levin DB  Bridges GE  Thomson DJ 《Biomicrofluidics》2012,6(2):24117-2411715

Dielectric particles flowing through a microfluidic channel over a set of coplanar electrodes can be simultaneously capacitively detected and dielectrophoretically (DEP) actuated when the high (1.45 GHz) and low (100 kHz–20 MHz) frequency electromagnetic fields are concurrently applied through the same set of electrodes. Assuming a simple model in which the only forces acting upon the particles are apparent gravity, hydrodynamic lift, DEP force, and fluid drag, actuated particle trajectories can be obtained as numerical solutions of the equations of motion. Numerically calculated changes of particle elevations resulting from the actuation simulated in this way agree with the corresponding elevation changes estimated from the electronic signatures generated by the experimentally actuated particles. This verifies the model and confirms the correlation between the DEP force and the electronic signature profile. It follows that the electronic signatures can be used to quantify the actuation that the dielectric particle experiences as it traverses the electrode region. Using this principle, particles with different dielectric properties can be effectively identified based exclusively on their signature profile. This approach was used to differentiate viable from non-viable yeast cells (Saccharomyces cerevisiae).  相似文献   

Schülerwahrnehmungen des Unterrichtsklimas     

Tim Heemsoth  Wolf-Dietrich Miethling 《Sportwissenschaft》2012,42(4):228-239

The limited findings on student perceptions of class climate in physical education (PE) classes can be attributed to the lack of a suitable measuring instrument. In an effort to overcome this research desideratum, this study aims to construct and develop a questionnaire measuring the students’ perceptions of class climate in PE classes. Therefore, findings from general class climate research (e.g. Saldern & Litig, 1987) are linked with qualitative findings of students’ perceptions in PE classes (Miethling & Krieger, 2004). The questionnaire was answered by 1,135 students from grades eight through ten attending a German secondary school (Gymnasium). A principal component analysis (PCA) with orthogonal rotation (varimax) gives an eight-component solution including 40 items. Regarding the PCA, class climate can be measured by two components pertaining solely to teachers, three components describing the teacher-student relationship and three components describing the student-student relationship. The criterion-related validity is satisfactory at the class level; 57% of variance of the criterion enjoyment in PE class can be explained. Deeper analyses show noticeable class climate characteristics in individual schools. Finally, further developments of the questionnaire and perspectives regarding school climate and academic culture research are discussed.  相似文献   

Combining peer‐assessment with negotiated learning activities on a day‐release undergraduate‐level certificate course (ECTS level 3)     

Tim McMahon 《Assessment & Evaluation in Higher Education》2010,35(2):223-239

Peer‐assessment was used within a negotiated curriculum in a module on training and development at ECTS level 3. The students on the programme were exclusively day‐release and all had a major responsibility for the management and delivery of work‐based training programmes. Analysis of student evaluations, supplemented by those of university assessors and the external examiner, showed that the learning on the programme was transformative in that it changed the way students perceived their own abilities and their potential to make improvements in their work both as students and trainers. Peer‐assessment encouraged critical reflection, helped develop skills of autonomous learning and provided feedback that took account of individual learning needs. Weaker students benefited from the talents of their more able peers. Students planned, monitored and assessed their learning activities in a way that significantly increased motivation and raised academic standards. The learning achieved led to a transformation of personal and professional perspective on the part of the students leading to greater personal autonomy.  相似文献   

The Effects of Selection Strategies for Bivariate Loglinear Smoothing Models on NEAT Equating Functions     

Tim Moses  Paul W. Holland 《Journal of Educational Measurement》2010,47(1):76-91

In this study, eight statistical strategies were evaluated for selecting the parameterizations of loglinear models for smoothing the bivariate test score distributions used in nonequivalent groups with anchor test (NEAT) equating. Four of the strategies were based on significance tests of chi-square statistics (Likelihood Ratio, Pearson, Freeman-Tukey, and Cressie-Read) and four additional strategies were based on different evaluations of the Likelihood Ratio Chi-Square statistic (Akaike Information Criterion, Bayesian Information Criterion, Consistent Akaike Information Criterion, and an index traced to Goodman). The focus was the implications of the selection strategies' selection tendencies for the accuracy of chained and poststratification equating functions. The results differentiated the strategies in terms of their tendencies to select models with particular bivariate parameterizations and the implications of these tendencies for equating bias and variability .  相似文献