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The prevailing consensus is that science teaching should be more student-centered and guide learners towards more phenomenon-based and authentic problem-solving activities. This approach is reflected in educational policies and recently reformed curricula. However, there is limited research on how these frameworks actually manifest in curricula and how to facilitate student-centered pedagogy. In this study, we examine the student-centered features of the curricula of two countries: Finland and Hong Kong. Student-centeredness in the classroom can be assessed using the principles of dialogicity. Dialogic principles underpin student-centeredness, particularly in teacher-orchestrated whole-class discussions. Dialogic interactions include mutual consideration of different and even diverging views. This study first reviews the dialogic themes in the curricula, then explores the ways in which student-centered approaches can be realized in practice by analyzing the dialogic interactions in two classroom examples. The dialogic themes identified in the curricula are considered in the context of the classroom examples. As science classroom interactions are still prevailingly teacher-centered and authoritative, the insights into alternative approaches generated by the examples are discussed. This study prepares the context for further discussion of curricular development, dialogicity and its implications for teaching and teacher education. [ABSTRACT FROM AUTHOR]

Hypothesis A 1-layer, continuous technique for esophageal anastomosis after esophagectomy has been in routine use at the University of Hong Kong Medical Centre since 1996. This study aims to document the results of this method and examine factors that may predispose patients to complications associated with esophageal anastomosis. Design Retrospective study. Setting University academic surgical center. Patients and Methods We studied 218 consecutive patients who had an esophageal anastomosis constructed with a 1-layer, continuous technique. Data were prospectively collected. Main Outcome Measures Morbidity and mortality rates, anastomotic leaks, stricture, and recurrences. Results Anastomotic leaks affected 7 patients (3.2%), of whom 3 required surgical reexploration and none died. The hospital mortality rate was 0.9% (2 patients), attributed to myocardial infarction and malignancy. Anastomotic strictures developed in 24 patients (11.1%). Multivariate analysis in those with gastric conduits showed that a cervical anastomosis (intrathoracic vs cervical; odds ratio, 0.27; 95% confidence interval, 0.08-0.87; P = .03) and use of the distal stomach (distal stomach vs whole stomach; odds ratio, 5.25; 95% confidence interval, 1.65-16.66; P = .005) were predictive of benign anastomotic stricture formation. Eleven patients (17.5%) who had a cervical anastomosis developed strictures compared with 13 (8.6%) in those who had intrathoracic anastomoses. Strictures developed in 12 patients (7.4%) with a whole stomach conduit and in 9 patients (19.6%) with a distal stomach conduit. Anastomotic recurrence occurred in 8 patients (3.7%); none had a histologically involved resection margin. Conclusions The single-layer, continuous, hand-sewn technique for esophageal anastomosis is safe and effective. Cervical anastomosis and use of the distal stomach were associated with more benign strictures. [ABSTRACT FROM AUTHOR]

Describes a study which aimed to provide relevant information for non-Chinese hoteliers and caterers who plan to engage in the Chinese food service industry within or beyond China's boundaries. Dimensions of work values of the hotels' Chinese; Differences among Chinese restaurant managers' demographic variables and industrial experience variables; Recommended strategies for foreign hotel companies that want to enter Chinese food service industry. china