Inside a beginning immigrant science teacher’s classroom: an ethnographic study

Teaching is a highly personal endeavor shaped by ‘funds of knowledge’ and beliefs about teaching, learning, and students. This case study examines how one Asian immigrant teacher’s personal expectations and beliefs influenced his expectations of students and the teaching and instructional strategies he employed. His expectations of students’ behavior and their failure to conform to his expectations influenced him to utilize more traditional, didactic instructional practices and responses to classroom management dilemmas. It is generally assumed that immigrant and minority students will benefit from exposure to teachers from similar backgrounds, and that ethnically diverse teachers can better prepare minority students for the multicultural workplace and global economy. This study focuses on the role a teacher’s background and experiences play in development of their beliefs about teaching and learning, their expectations of students, and the instructional decisions they make regarding teaching and learning. This study suggests that teachers draw on their personal histories and cultural understandings to create classroom practices which are molded by microcosms of personal ‘funds of knowledge’ and beliefs about teaching and learning. In contrast to conventional wisdom and unquestioned myths, this study emphasizes the importance of knowing that teachers’ cultural backgrounds do not necessarily qualify them to provide the most appropriate instructional environment for students from similar cultural backgrounds. This study suggests that all teachers need to learn to recognize and negotiate the unique social elements culturally diverse students bring to the classroom.     

汉史之诗：《史记》、《汉书》叙事中的诗歌含义

本文讨论《史记》、《汉书》里一种极具特色的现象,即叙事当中天衣无缝地包含着许多历史人物的即兴诗歌表演.作为中国早期历史编纂学的一种修辞方法,诗歌经常作为重要时刻的标志出现,而且与情感、道德的强烈诉求以及对事实、真实性的强烈认定相关,反映汉代诗学的基本思维对历史编纂学的影响.这一点适用于身体或情感绝灭刹那时主人公即兴吟唱的抒情诗歌,也适用于预言政治灾难或者哀叹民生多艰的匿名小调.     

Effect of ultraviolet photofunctionalization of dental titanium implants on osseointegration

Objective

The aim of the current study was to evaluate the effect of ultraviolet (UV) photofunctionalization of dental titanium implants with exposure to the oral cavity on osseointegration in an animal model.

Methods

Forty-eight titanium implants (Camlog® Conelog® 4.3 mmx9.0 mm) were placed epicrestally into the edentulous jaws of three minipigs and implant stability was assessed by measuring the implant stability quotient (ISQ). Prior to implantation half of the implants were photofunctionalized with intense UV-light. After three months, the implants were exposed and ISQ was measured again. After six months of implant exposure, the minipigs were sacrificed and the harvested specimens were analyzed using histomorphometric, light, and fluorescence microscopy.

Main results

Forty-two of 48 implants osseointegrated. The overall mean bone-implant contact area (BIC) was (64±22)%. No significant differences were found in BIC or ISQ value (multivariate analysis of variance (MANOVA), P>0.05) between implants with and without exposure to UV photofunctionalization.

Conclusions

No significant effects were observed on osseointegration of dental titanium implants nine months after exposure of UV photofunctionalization.

     

Interoperability and Information Integration in an Early Online Academic Digital Library of Theses and Dissertations: The Case of BTD

Cooperative organization has been proposed as a means to improve the usefulness of virtual libraries. Information interchange among library and other academic applications is often hindered by the lack of application interoperability. This hindrance may be overcome through the development of standards that allow for digital libraries to exchange and share information with other applications. The Graduate Program in Production Engineering (PPGEP) of the Federal University of Santa Catarina (UFSC) launched its Theses and Dissertations Bank (BTD) in 1995. BTD is possibly the first online academic digital library of theses. From a digital document repository, BTD evolved into a system that combines bibliometry and informetry features. BTD is used by students and faculty in their research activities, but also by decision makers from industry and academia. They use it, respectively, to search for specialists and to measure interest and knowledge interchange among PPGEP research areas. This article presents the history, features, and development prospects for the BTD project. The integration of BTD with other academic applications, especially those of the Brazilian national science and technology platform, is emphasized.     

Parents' Socialization of Children's Injury Prevention: Description and Some Initial Parameters

In a year-long participant observation study of remediative action following actual injury, 61 8- and 9-year-old children and their 27-46-year-old mothers wrote records and reported on more than 1,000 minor injuries in branching biweekly interviews. Mothers reported that 80.1% of injuries received no parent-initiated remediation, 14% received only a lecture, and less than 3% of injuries were followed by parental action. Children reported that 96.1% of their injuries were followed by no remediative action and recalled lectures after only 1.2% of injuries. Remediative action was related to type of child activity (e.g., unstructured play was followed by remediation more often than more purposive behavior) and to mother's affect (e.g., anger) and beliefs (e.g., that injury was the child's fault or due to rule violation). The parameters that influenced remediative consequences, and thus that may influence future injury, are discussed.     

Consultants and experts in management consulting firms

The aim of the article is to explore different aspects concerning the distinction between the expert and the consultant. We analyse theoretically and empirically these distinctions in the framework of the knowledge-based economy in order to introduce the central concepts of epistemic community and community of practice. The question is to know to which community experts and consultant belongs. We also investigate the role that some actors coming from outside the firm play in reinforcing knowledge creation and codification processes in the firm.